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MEDIUM

pam_krb5 existing_ticket permission flaw

Published Oct 3, 2008

Description

pam_krb5 2.2.14 in Red Hat Enterprise Linux (RHEL) 5 and earlier, when the existing_ticket option is enabled, uses incorrect privileges when reading a Kerberos credential cache, which allows local users to gain privileges by setting the KRB5CCNAME environment variable to an arbitrary cache filename and running the (1) su or (2) sudo program. NOTE: there may be a related vector involving sshd that has limited relevance.

Affected products

Remediation

Red Hat statement

This issue did not affect the version of pam_krb5 shipped in Red Hat Enterprise Linux 2.1, 3, or 4.

Metrics

Weaknesses (1)

References (19)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Oct 3, 2008
Updated Aug 7, 2024
Reserved Aug 27, 2008
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Moderate
Public date Oct 1, 2008