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CVE-2023-38408Date: (C)2023-07-21   (M)2024-04-24


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 9.8CVSS Score :
Exploit Score: 3.9Exploit Score:
Impact Score: 5.9Impact Score:
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector:
Attack Complexity: LOWAccess Complexity:
Privileges Required: NONEAuthentication:
User Interaction: NONEConfidentiality:
Scope: UNCHANGEDIntegrity:
Confidentiality: HIGHAvailability:
Integrity: HIGH 
Availability: HIGH 
  
Reference:
FEDORA-2023-79a18e1725
FEDORA-2023-878e04f4ae
GLSA-202307-01
https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
http://www.openwall.com/lists/oss-security/2023/07/20/1
http://www.openwall.com/lists/oss-security/2023/07/20/2
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca
https://news.ycombinator.com/item?id=36790196
https://security.netapp.com/advisory/ntap-20230803-0010/
https://support.apple.com/kb/HT213940
https://www.openssh.com/security.html
https://www.openssh.com/txt/release-9.3p2
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt
https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408

CWE    1
CWE-428
OVAL    28
oval:org.secpod.oval:def:93239
oval:org.secpod.oval:def:4501443
oval:org.secpod.oval:def:507882
oval:org.secpod.oval:def:1601778
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