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›vulnerability›CVE-2023-38408
Name
CVE-2023-38408
Source
NVD ( link)Debian ( link)
Description
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.
CWEs
CWE-428 CWE-428
Published Date
Updated Date
Workaround
-
Advisories
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlExploit
http://www.openwall.com/lists/oss-security/2023/07/20/1Exploit
http://www.openwall.com/lists/oss-security/2023/07/20/2Mailing List
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agentThird Party Advisory
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8Patch
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351dPatch
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7caPatch
https://news.ycombinator.com/item?id=36790196Issue Tracking
https://security.gentoo.org/glsa/202307-01Third Party Advisory
https://www.openssh.com/security.htmlVendor Advisory
https://www.openssh.com/txt/release-9.3p2Release Notes
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txtExploit
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlExploit
http://www.openwall.com/lists/oss-security/2023/07/20/1Exploit
http://www.openwall.com/lists/oss-security/2023/07/20/2Mailing List
https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agentThird Party Advisory
https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8Patch
https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351dPatch
https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7caPatch
https://news.ycombinator.com/item?id=36790196Issue Tracking
https://security.gentoo.org/glsa/202307-01Third Party Advisory
https://www.openssh.com/security.htmlVendor Advisory
https://www.openssh.com/txt/release-9.3p2Release Notes
https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txtExploit

Analysis#

Affected Component
Analysis
openssh
Patched

Vulnerability Ratings#

9.8
CVSSv31
9.8
CVSSv31
NaN
other

Others affected components#

Name
Project
Project Version
Version
Status
openssh
buildroot
2025.02.x
9.9p2
Not Affected
openssh
buildroot
master
10.3p1
Not Affected
openssh
openwrt
master
10.3_p1-r2
Not Affected
openssh
openwrt
openwrt-25.12
10.3_p1-r1
Not Affected
openssh
yocto
master
10.3p1
Not Affected
openssh
yocto
scarthgap
9.6p1
Not Affected

Resolved with patches#

openssh (yocto:kirkstone)

#
Title
Author
Resolve
1
upstream: Separate ssh-pkcs11-helpers for each p11 module
"djm@openbsd.org" <djm@openbsd.org>
CVE-2023-38408
2
upstream: Ensure FIDO/PKCS11 libraries contain expected
"djm@openbsd.org" <djm@openbsd.org>
CVE-2023-38408
3
upstream: Disallow remote addition of FIDO/PKCS11
"djm@openbsd.org" <djm@openbsd.org>
CVE-2023-38408
4
upstream: terminate process if requested to load a
"djm@openbsd.org" <djm@openbsd.org>
CVE-2023-38408