Cisco MDS : OpenSSH Remote Code Execution (RCE) Vulnerability in its forwarded ssh-agent
Summary: Customers Qualys scan noted 'CVE-2023-38408'
Symptoms
Symptoms:
OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.
OpenSSH contains the following vulnerabilities:
Qualys scan discovered vulnerability (CVE-2023-38408)
- This is a condition where specific libraries loaded via ssh-agent(1)'s PKCS#11 support could be abused to achieve remote code execution via a forwarded agent socket.
Affected Versions:
OpenSSH versions prior to 9.3p2
Cause
CVE-2023-38408 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38408
Addressed in Cisco bug CSCwh11743
https://bst.cisco.com/bugsearch/bug/CSCwh11743
Resolution
Workaround:
Not Applicable.
Further Problem Description:
PKCS#11 is not supported on MDS 9000 and the MDS 9000 is not vulnerable to CVE-2023-38408 at any NX-OS version. Cisco MDS series switches are not vulnerable. Not exploitable