Incorrect Authorization Affecting libkadm5 package, versions <0:1.20.1-8.el9


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
13.79% (97th percentile)

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  • Snyk IDSNYK-ALMALINUX9-LIBKADM5-5642607
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

CVE-2020-17049  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 libkadm5 to version 0:1.20.1-8.el9 or higher.
This issue was patched in ALSA-2023:2570.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libkadm5 package and not the libkadm5 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD). To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it. The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.

CVSS Base Scores

version 3.1