Arbitrary Code Injection Affecting openssh package, versions <0:8.7p1-30.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
76.77% (100th percentile)

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  • Snyk IDSNYK-RHEL9-OPENSSH-5814197
  • published20 Jul 2023
  • disclosed19 Jul 2023

Introduced: 19 Jul 2023

CVE-2023-38408  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade RHEL:9 openssh to version 0:8.7p1-30.el9_2 or higher.
This issue was patched in RHSA-2023:4412.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

References

CVSS Base Scores

version 3.1