CVE-2023-38408

Published: Jul 20, 2023Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (5)

Products: Openbsd: Openssh · Fedoraproject: Fedora

1 product

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openssh	Before 9.3
Openbsd Openssh	Version 9.3
Openbsd Openssh	Version 9.3 p1

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 37
Fedoraproject Fedora	Version 38

Related CWEs

Unquoted Search Path or Element

The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.

References (40)

http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html

Source: cve@mitre.org

ExploitThird Party AdvisoryVDB Entry

http://www.openwall.com/lists/oss-security/2023/07/20/1

Source: cve@mitre.org

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2023/07/20/2

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2023/09/22/11

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2023/09/22/9

Source: cve@mitre.org

https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent

Source: cve@mitre.org

Third Party Advisory

https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8

Source: cve@mitre.org

Patch

https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d

Source: cve@mitre.org

Patch

https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca

Source: cve@mitre.org

Patch

https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/

Source: cve@mitre.org

https://news.ycombinator.com/item?id=36790196

Source: cve@mitre.org

Issue TrackingPatch

https://security.gentoo.org/glsa/202307-01

Source: cve@mitre.org

Third Party Advisory

https://security.netapp.com/advisory/ntap-20230803-0010/

Source: cve@mitre.org

https://support.apple.com/kb/HT213940

Source: cve@mitre.org

https://www.openssh.com/security.html

Source: cve@mitre.org

Vendor Advisory

https://www.openssh.com/txt/release-9.3p2

Source: cve@mitre.org

Release Notes

https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt

Source: cve@mitre.org

ExploitThird Party Advisory

https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408

Source: cve@mitre.org

http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party AdvisoryVDB Entry

http://www.openwall.com/lists/oss-security/2023/07/20/1

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2023/07/20/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2023/09/22/11

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2023/09/22/9

Source: af854a3a-2127-422b-91ae-364da2661108

https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/

Source: af854a3a-2127-422b-91ae-364da2661108

https://news.ycombinator.com/item?id=36790196

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatch

https://security.gentoo.org/glsa/202307-01

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://security.netapp.com/advisory/ntap-20230803-0010/

Source: af854a3a-2127-422b-91ae-364da2661108

https://support.apple.com/kb/HT213940

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.openssh.com/security.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://www.openssh.com/txt/release-9.3p2

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes

https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.