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3 vulnerabilities by duo
CVE-2023-20207 (GCVE-0-2023-20207)
Vulnerability from cvelistv5 – Published: 2023-07-12 13:51 – Updated: 2024-08-02 09:05
VLAI?
Summary
A vulnerability in the logging component of Cisco Duo Authentication Proxy could allow an authenticated, remote attacker to view sensitive information in clear text on an affected system.
This vulnerability exists because certain unencrypted credentials are stored. An attacker could exploit this vulnerability by accessing the logs on an affected system and obtaining credentials that they may not normally have access to. A successful exploit could allow the attacker to view sensitive information in clear text.
Severity ?
4.9 (Medium)
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Duo Authentication Proxy |
Affected:
2.10.0
Affected: 2.10.1 Affected: 2.11.0 Affected: 2.12.0 Affected: 2.12.1 Affected: 2.13.0 Affected: 2.14.0 Affected: 2.4.10 Affected: 2.4.11 Affected: 2.4.12 Affected: 2.4.13 Affected: 2.4.14 Affected: 2.4.14.1 Affected: 2.4.15 Affected: 2.4.16 Affected: 2.4.17 Affected: 2.4.18 Affected: 2.4.19 Affected: 2.4.2 Affected: 2.4.20 Affected: 2.4.21 Affected: 2.4.3 Affected: 2.4.4 Affected: 2.4.5 Affected: 2.4.6 Affected: 2.4.7 Affected: 2.4.8 Affected: 2.4.9 Affected: 2.5.4 Affected: 2.6.0 Affected: 2.7.0 Affected: 2.8.1 Affected: 2.9.0 Affected: 3.0.0 Affected: 3.1.0 Affected: 3.1.1 Affected: 3.2.0 Affected: 3.2.1 Affected: 3.2.2 Affected: 3.2.3 Affected: 3.2.4 Affected: 4.0.0 Affected: 4.0.1 Affected: 4.0.2 Affected: 5.0.0 Affected: 5.0.1 Affected: 5.0.2 Affected: 5.1.0 Affected: 5.1.1 Affected: 5.2.0 Affected: 5.2.1 Affected: 5.2.2 Affected: 5.3.0 Affected: 5.3.1 Affected: 5.4.0 Affected: 5.4.1 Affected: 5.5.0 Affected: 5.5.1 Affected: 5.6.0 Affected: 5.6.1 |
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CVE-2021-1492 (GCVE-0-2021-1492)
Vulnerability from cvelistv5 – Published: 2021-03-25 14:25 – Updated: 2024-11-08 23:30
VLAI?
Title
Duo Authentication Proxy Installer Denial of Service Vulnerability
Summary
The Duo Authentication Proxy installer prior to 5.2.1 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrary privileged directories. If successful, an attacker can manipulate files used by Duo Authentication Proxy installer, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. This is only exploitable during new installations, while the installer is running, and is not exploitable once installation has finished. Versions 5.2.1 of Duo Authentication Proxy installer addresses this issue.
Severity ?
6.6 (Medium)
CWE
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Duo Authentication Proxy |
Affected:
unspecified , < 5.2.1
(custom)
|
Credits
Duo Security appreciates Ido Hoorvitch from CyberArk Labs for reporting the method of exploitation.
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CVE-2020-3442 (GCVE-0-2020-3442)
Vulnerability from cvelistv5 – Published: 2020-07-20 20:45 – Updated: 2024-11-13 18:18
VLAI?
Title
DuoConnect SSH Connection Vulnerability
Summary
The DuoConnect client enables users to establish SSH connections to hosts protected by a DNG instance. When a user initiates an SSH connection to a DNG-protected host for the first time using DuoConnect, the user’s browser is opened to a login screen in order to complete authentication determined by the contents of the '-relay' argument. If the ‘-relay’ is set to a URL beginning with "http://", then the browser will initially attempt to load the URL over an insecure HTTP connection, before being immediately redirected to HTTPS (in addition to standard redirect mechanisms, the DNG uses HTTP Strict Transport Security headers to enforce this). After successfully authenticating to a DNG, DuoConnect stores an authentication token in a local system cache, so users do not have to complete this browser-based authentication workflow for every subsequent SSH connection. These tokens are valid for a configurable period of time, which defaults to 8 hours. If a user running DuoConnect already has a valid token, then instead of opening a web browser, DuoConnect directly contacts the DNG, again using the configured '-relay' value, and sends this token, as well as the intended SSH server hostname and port numbers. If the '-relay' argument begins with "http://", then this request will be sent over an insecure connection, and could be exposed to an attacker who is sniffing the traffic on the same network. The DNG authentication tokens that may be exposed during SSH relay may be used to gain network-level access to the servers and ports protected by that given relay host. The DNG provides network-level access only to the protected SSH servers. It does not interact with the independent SSH authentication and encryption. An attacker cannot use a stolen token on its own to authenticate against a DNG-protected SSH server.
Severity ?
4.8 (Medium)
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | DUO Connect |
Affected:
unspecified , < 1.1.1
(custom)
|
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"value": "The Duo Product team has fixed the issue by updating DuoConnect to version 1.1.1, which rejects relay configurations that do not specify an HTTPS-based relay.\n\nA DNG instance will automatically instruct users to install the latest version of DuoConnect. Duo administrators do not need to perform any manual updates unless their DNG is not able to connect to the internet to download the new version of the software. In that case, administrators should instruct end-users to download the latest DuoConnect version directly using the links below.\n\nSteps required for end-user remediation:\n\nUpdate DuoConnect:\nEnd-users will need to update DuoConnect once prompted to do so by the DNG (users will be prompted to upgrade DuoConnect during authentication in their browser from July 7, 2020 onwards).\nThe updated version of DuoConnect can alternatively be downloaded directly from the following locations at any time: Windows - https://dl.duosecurity.com/DuoConnect-1.1.1.msi\nmacOS - https://dl.duosecurity.com/DuoConnect-1.1.1.pkg\nLinux - https://dl.duosecurity.com/DuoConnect-1.1.1.tar.gz\nThe signature of DuoConnect installer files can be verified at https://duo.com/docs/checksums.\n\nEnd-users will need to update their DuoConnect SSH configuration if they receive the error message shown below:\n\nError: Invalid URL: relay scheme http://server-ssh.example.com invalid: must be https\n\nUpdate the SSH configuration: Locate the http relay in the SSH configuration e.g. \u201cProxyCommand duoconnect -host=%h:%p -relay=http://server-ssh.example.com\u201d Ensure the relay uses \u2018https://\u2019, and not \u2018http://\u2019\n\nThe SSH configuration for *nix and macOS operating systems can be located at ~/.ssh/config. The SSH configuration for Windows operating systems can most commonly be found in the user directory C:\\Users\\username.ssh.\n\nAdditionally, you can refer to the \u201cConfigure SSH\u201d section in the DuoConnect guide to learn more about steps for SSH configuration should you need further guidance."
}
],
"source": {
"advisory": "DUO-PSA-2020-003",
"defect": [
"DUO-PSA-2020-003"
],
"discovery": "INTERNAL"
},
"title": "DuoConnect SSH Connection Vulnerability",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "psirt@cisco.com",
"DATE_PUBLIC": "2020-07-15T20:00:00.000Z",
"ID": "CVE-2020-3442",
"STATE": "PUBLIC",
"TITLE": "DuoConnect SSH Connection Vulnerability"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "DUO Connect",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "1.1.1"
}
]
}
}
]
},
"vendor_name": "Cisco"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The DuoConnect client enables users to establish SSH connections to hosts protected by a DNG instance. When a user initiates an SSH connection to a DNG-protected host for the first time using DuoConnect, the user\u2019s browser is opened to a login screen in order to complete authentication determined by the contents of the \u0027-relay\u0027 argument. If the \u2018-relay\u2019 is set to a URL beginning with \"http://\", then the browser will initially attempt to load the URL over an insecure HTTP connection, before being immediately redirected to HTTPS (in addition to standard redirect mechanisms, the DNG uses HTTP Strict Transport Security headers to enforce this). After successfully authenticating to a DNG, DuoConnect stores an authentication token in a local system cache, so users do not have to complete this browser-based authentication workflow for every subsequent SSH connection. These tokens are valid for a configurable period of time, which defaults to 8 hours. If a user running DuoConnect already has a valid token, then instead of opening a web browser, DuoConnect directly contacts the DNG, again using the configured \u0027-relay\u0027 value, and sends this token, as well as the intended SSH server hostname and port numbers. If the \u0027-relay\u0027 argument begins with \"http://\", then this request will be sent over an insecure connection, and could be exposed to an attacker who is sniffing the traffic on the same network. The DNG authentication tokens that may be exposed during SSH relay may be used to gain network-level access to the servers and ports protected by that given relay host. The DNG provides network-level access only to the protected SSH servers. It does not interact with the independent SSH authentication and encryption. An attacker cannot use a stolen token on its own to authenticate against a DNG-protected SSH server."
}
]
},
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"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
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{
"description": [
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"lang": "eng",
"value": "CWE-319 Cleartext Transmission of Sensitive Information"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "DuoConnect SSH Connection Vulnerability",
"refsource": "CISCO",
"url": "https://duo.com/labs/psa/duo-psa-2020-003"
}
]
},
"solution": [
{
"lang": "en",
"value": "The Duo Product team has fixed the issue by updating DuoConnect to version 1.1.1, which rejects relay configurations that do not specify an HTTPS-based relay.\n\nA DNG instance will automatically instruct users to install the latest version of DuoConnect. Duo administrators do not need to perform any manual updates unless their DNG is not able to connect to the internet to download the new version of the software. In that case, administrators should instruct end-users to download the latest DuoConnect version directly using the links below.\n\nSteps required for end-user remediation:\n\nUpdate DuoConnect:\nEnd-users will need to update DuoConnect once prompted to do so by the DNG (users will be prompted to upgrade DuoConnect during authentication in their browser from July 7, 2020 onwards).\nThe updated version of DuoConnect can alternatively be downloaded directly from the following locations at any time: Windows - https://dl.duosecurity.com/DuoConnect-1.1.1.msi\nmacOS - https://dl.duosecurity.com/DuoConnect-1.1.1.pkg\nLinux - https://dl.duosecurity.com/DuoConnect-1.1.1.tar.gz\nThe signature of DuoConnect installer files can be verified at https://duo.com/docs/checksums.\n\nEnd-users will need to update their DuoConnect SSH configuration if they receive the error message shown below:\n\nError: Invalid URL: relay scheme http://server-ssh.example.com invalid: must be https\n\nUpdate the SSH configuration: Locate the http relay in the SSH configuration e.g. \u201cProxyCommand duoconnect -host=%h:%p -relay=http://server-ssh.example.com\u201d Ensure the relay uses \u2018https://\u2019, and not \u2018http://\u2019\n\nThe SSH configuration for *nix and macOS operating systems can be located at ~/.ssh/config. The SSH configuration for Windows operating systems can most commonly be found in the user directory C:\\Users\\username.ssh.\n\nAdditionally, you can refer to the \u201cConfigure SSH\u201d section in the DuoConnect guide to learn more about steps for SSH configuration should you need further guidance."
}
],
"source": {
"advisory": "DUO-PSA-2020-003",
"defect": [
"DUO-PSA-2020-003"
],
"discovery": "INTERNAL"
}
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}
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"assignerShortName": "cisco",
"cveId": "CVE-2020-3442",
"datePublished": "2020-07-20T20:45:17.962522Z",
"dateReserved": "2019-12-12T00:00:00",
"dateUpdated": "2024-11-13T18:18:39.826Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}