Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH...

Vulnerability Description

Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.

References

• https://github.com/openbsd/src/commit/9476ce1dd37d3c3218d5640b74c34c65e5f4efe5
• https://www.exploit-db.com/exploits/40963/
• https://security.netapp.com/advisory/ntap-20171130-0002/
• http://www.securityfocus.com/bid/94968
• http://www.openwall.com/lists/oss-security/2016/12/19/2
• http://www.securitytracker.com/id/1037490
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
• https://security.FreeBSD.org/advisories/FreeBSD-SA-17:01.openssh.asc
• https://usn.ubuntu.com/3538-1/
• http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
• https://access.redhat.com/errata/RHSA-2017:2029
• http://packetstormsecurity.com/files/140261/OpenSSH-Arbitrary-Library-Loading.html
• https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
• https://www.openssh.com/txt/release-7.4
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1009
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
• http://www.openwall.com/lists/oss-security/2023/07/19/9
• http://seclists.org/fulldisclosure/2023/Jul/31
• http://www.openwall.com/lists/oss-security/2023/07/20/1
• http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html