QID 38904

Date Published: 2023-07-19

QID 38904: OpenSSH Remote Code Execution (RCE) Vulnerability in its forwarded ssh-agent

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:
We have discovered this vulnerability (CVE-2023-38408) - It 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 if the conditions mentioned here are met.

Affected Versions:
OpenSSH versions prior to 9.3p2

QID Detection Logic:
This unauthenticated detection works by reviewing the version of the OpenSSH service.

Successful exploitation allows an attacker to perform a remote code execution vulnerability via a forwarded agent socket.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Customers are advised to upgrade to OpenSSH 9.3p2 or later to remediate these vulnerabilities.
    Vendor References

    CVEs related to QID 38904

    CVE-2023-38408 |
    Software Advisories
    Advisory ID Software Component Link
    OpenSSH 9.3p2 URL Logo www.openssh.com/txt/release-9.3p2
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