Improper Authentication Affecting ipa-server-dns package, versions <0:4.6.8-5.el7_9.10


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-RHEL7-IPASERVERDNS-1915602
  • published11 Nov 2021
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2020-25719  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade RHEL:7 ipa-server-dns to version 0:4.6.8-5.el7_9.10 or higher.
This issue was patched in RHSA-2021:5195.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ipa-server-dns package and not the ipa-server-dns package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.

CVSS Scores

version 3.1