Incorrect Privilege Assignment Affecting openssh package, versions <0:5.3p1-117.el6


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.38% (31st percentile)

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  • Snyk IDSNYK-CENTOS6-OPENSSH-2132604
  • published26 Jul 2021
  • disclosed11 Aug 2015

Introduced: 11 Aug 2015

CVE-2015-6563  (opens in a new tab)
CWE-266  (opens in a new tab)

How to fix?

Upgrade Centos:6 openssh to version 0:5.3p1-117.el6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.

CVSS Base Scores

version 3.1