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Last updated: 7/25/2014 7:16:02 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-3825

Original release date: 10/03/2008
Last revised: 02/17/2011
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.4 (MEDIUM) (AV:L/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (01/01/1900)
This issue did not affect the version of pam_krb5 shipped in Red Hat Enterprise Linux 2.1, 3, or 4.

References to Advisories, Solutions, and Tools

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External Source: SUSE
Name: SUSE-SR:2008:027
External Source: REDHAT
Name: RHSA-2008:0907
External Source: SECUNIA
Name: 32135
External Source: FEDORA
Name: FEDORA-2008-8605
External Source: FEDORA
Name: FEDORA-2008-8618
External Source: MANDRIVA
Name: MDVSA-2008:209
External Source: CONFIRM
Name: http://www.vmware.com/security/advisories/VMSA-2011-0003.html
External Source: BID
Name: 31534
External Source: BUGTRAQ
Name: 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX
External Source: XF
Name: pamkrb5-existingticket-privilege-escalation(45635)
External Source: SECUNIA
Name: 32174
External Source: SECUNIA
Name: 32119
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=461960
External Source: OVAL
Name: oval:org.mitre.oval:def:10923
External Source: SECTRACK
Name: 1020978
External Source: SECUNIA
Name: 43314

References to Check Content

Identifier: oval:org.mitre.oval:def:10923
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)