Insufficient Verification of Data Authenticity Affecting libkadm5 package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
2.45% (91st percentile)

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  • Snyk IDSNYK-CENTOS7-LIBKADM5-1933762
  • published23 Nov 2021
  • disclosed10 Nov 2020

Introduced: 10 Nov 2020

CVE-2020-17049  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libkadm5.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libkadm5 package and not the libkadm5 package as distributed by Centos. See How to fix? for Centos:7 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 Scores

version 3.1