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8 vulnerabilities found for nas326 by zyxel
VAR-201904-1090
Vulnerability from variot - Updated: 2023-12-18 14:00Shell Metacharacter Injection in the package installer on Zyxel NAS 326 version 5.21 and below allows an authenticated attacker to execute arbitrary code via multiple different requests. Zyxel NAS 326 Contains a command injection vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. ZyxelNAS326 is a dual-disc personal cloud storage device from Zyxel. A shell meta-injection vulnerability exists in the package installer in ZyxelNAS3265.21 and earlier. ZyXEL NAS 326 is a NAS (Network Attached Storage) device produced by ZyXEL Corporation of Taiwan, China. The vulnerability comes from the fact that the network system or product does not properly filter special elements in the process of constructing executable commands from external input data
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VAR-201904-1093
Vulnerability from variot - Updated: 2023-12-18 13:33An XSS vulnerability in the Zyxel NAS 326 version 5.21 and below allows a remote authenticated attacker to inject arbitrary JavaScript or HTML via the user, group, and file-share description fields. Zyxel NAS 326 Contains a cross-site scripting vulnerability.Information may be obtained and information may be altered. ZyxelNAS326 is a dual-disc personal cloud storage device from Zyxel. A cross-site scripting vulnerability exists in ZyxelNAS3265.21 and earlier. ZyXEL NAS 326 is a NAS (Network Attached Storage) device produced by ZyXEL Corporation of Taiwan, China. There is a cross-site scripting vulnerability in ZyXEL NAS 326 5.21 and earlier versions, which is caused by the lack of correct verification of client data in WEB applications. An attacker could exploit this vulnerability to execute client code
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VAR-201904-1092
Vulnerability from variot - Updated: 2023-12-18 13:23An eval injection vulnerability in the Python web server routing on the Zyxel NAS 326 version 5.21 and below allows a remote authenticated attacker to execute arbitrary code via the tjp6jp6y4, simZysh, and ck6fup6 APIs. Zyxel NAS 326 Contains a code injection vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. ZyxelNAS326 is a dual-disc personal cloud storage device from Zyxel. Remote authentication attackers can exploit this vulnerability to execute arbitrary code through tjp6jp6y4, simZysh, and ck6fup6API. ZyXEL NAS 326 is a NAS (Network Attached Storage) device produced by ZyXEL Corporation of Taiwan, China. This vulnerability stems from the fact that the network system or product does not correctly filter special elements in the process of constructing code segments from external input data
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VAR-201904-1089
Vulnerability from variot - Updated: 2023-12-18 12:56A plaintext password vulnerability in the Zyxel NAS 326 through 5.21 allows an elevated privileged user to get the admin password of the device. Zyxel NAS 326 Contains vulnerabilities related to certificate and password management.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. ZyxelNAS326 is a dual-disc personal cloud storage device from Zyxel. ZyXEL NAS 326 is a NAS (Network Attached Storage) device produced by ZyXEL Corporation of Taiwan, China. There is a trust management vulnerability in ZyXEL NAS 326 5.21 and earlier versions, which originates from the lack of an effective trust management mechanism in the network system or product. Attackers can use default passwords or hard-coded passwords, hard-coded certificates, etc. to attack affected components
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VAR-201904-1091
Vulnerability from variot - Updated: 2023-12-18 12:18A directory traversal vulnerability in the file browser component on the Zyxel NAS 326 version 5.21 and below allows a lower privileged user to change the location of any other user's files. Zyxel NAS 326 Contains a path traversal vulnerability.Information may be tampered with. ZyxelNAS326 is a dual-disc personal cloud storage device from Zyxel. ZyXEL NAS 326 is a NAS (Network Attached Storage) device produced by ZyXEL Corporation of Taiwan, China. The vulnerability originates from the failure of network systems or products to properly filter resources or special elements in file paths. An attacker could exploit this vulnerability to access locations outside of restricted directories
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VAR-202003-1707
Vulnerability from variot - Updated: 2023-12-18 12:17Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2. plural ZyXEL Included in the product weblogin.cgi Is vulnerable to the execution of arbitrary commands. OS Command injection (CWE-78) - CVE-2020-9054 ZyXEL In multiple products offered by CGI Executable file weblogin.cgi Authentication is done using. About this vulnerability ZyXEL Made NAS Exploit codes for products are available on the Internet. Zyxel Technology is a provider of network broadband systems and solutions for internationally renowned brands. main
Products include DSL central office and terminal equipment, router equipment, network security equipment, wireless local area communication equipment,
It also provides full-range broadband network application integration solutions for Chinese enterprises, such as network telephones and Ethernet switches.
Multiple ZyXEL network-attached storage (NAS) devices have security holes
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CVE-2020-9054 (GCVE-0-2020-9054)
Vulnerability from cvelistv5 – Published: 2020-03-04 19:30 – Updated: 2025-10-21 23:35
VLAI?
Title
ZyXEL NAS products running firmware version 5.21 and earlier are vulnerable to pre-authentication command injection in weblogin.cgi
Summary
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2
Severity ?
9.8 (Critical)
CWE
- CWE-78 - OS Command Injection
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZyXEL | NAS326 |
Affected:
V5.21(AAZF.7)C0 , ≤ V5.21(AAZF.7)C0
(custom)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Thanks to Alex Holden of Hold Security for finding and reporting this vulnerability.
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CVE-2020-9054 (GCVE-0-2020-9054)
Vulnerability from nvd – Published: 2020-03-04 19:30 – Updated: 2025-10-21 23:35
VLAI?
Title
ZyXEL NAS products running firmware version 5.21 and earlier are vulnerable to pre-authentication command injection in weblogin.cgi
Summary
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2
Severity ?
9.8 (Critical)
CWE
- CWE-78 - OS Command Injection
Assigner
References
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Impacted products
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| ZyXEL | NAS326 |
Affected:
V5.21(AAZF.7)C0 , ≤ V5.21(AAZF.7)C0
(custom)
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Credits
Thanks to Alex Holden of Hold Security for finding and reporting this vulnerability.
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