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CVE-2023-38408 Detail


The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009.


CVSS 3.x Severity and Metrics:

Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html Exploit  Third Party Advisory  VDB Entry 
http://www.openwall.com/lists/oss-security/2023/07/20/1 Exploit  Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/07/20/2 Mailing List  Third Party Advisory 
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent Third Party Advisory 
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8 Patch 
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d Patch 
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca Patch 
https://news.ycombinator.com/item?id=36790196 Issue Tracking  Patch 
https://security.gentoo.org/glsa/202307-01 Third Party Advisory 
https://www.openssh.com/security.html Vendor Advisory 
https://www.openssh.com/txt/release-9.3p2 Release Notes 
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-428 Unquoted Search Path or Element cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

13 change records found show changes

Quick Info

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