PT-2015-4194 · Mit+6 · Mit Kerberos 5+6

Published 2015-01-21 · Updated 2024-06-15 · CVE-2014-9422

Positive Technologies (AI Summary)

CVSS v2.0

6.1

Medium

Base vector

AV:N/AC:H/Au:S/C:P/I:P/A:C

Name of the Vulnerable Software and Affected Versions MIT Kerberos 5 (krb5) versions 1.11.5 and earlier MIT Kerberos 5 (krb5) versions 1.12.x through 1.12.2 MIT Kerberos 5 (krb5) versions 1.13.x prior to 1.13.1

Description The issue allows remote authenticated users to bypass a kadmin/* authorization check and obtain administrative access. This can be achieved by leveraging access to a two-component principal with an initial "kadmind" substring. For example, a principal 'ka/x' can be used to demonstrate this.

Recommendations For versions 1.11.5 and earlier, update to version 1.11.6 or later. For versions 1.12.x through 1.12.2, update to version 1.12.3 or later. For versions 1.13.x prior to 1.13.1, update to version 1.13.1 or later. As a temporary workaround, consider restricting access to the check rpcsec auth function in kadmin/server/kadm rpc svc.c until a patch is available. Restrict access to principals with an initial "kadmind" substring to minimize the risk of exploitation.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

ALT-PU-2015-1151

ALT-PU-2015-1195

CESA-2015_0439

CESA-2015_0794

CVE-2014-9422

DLA-146-1

DSA-3153-1

MGASA-2015-0066

OPENSUSE-SU-2024:10004-1

RHSA-2015:0439

RHSA-2015:0794

RHSA-2015_0439

RHSA-2015_0794

SUSE-SU-2015:0257-1

SUSE-SU-2015:0290-1

SUSE-SU-2015:0290-2

USN-2498-1

Affected Products

Alt Linux

Centos

Ibm Aix

Mit Kerberos 5

Red Hat

Suse

Ubuntu

References · 99

• https://advisories.mageia.org/MGASA-2015-0066.html · Security Note
• https://ubuntu.com/security/CVE-2014-9422 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2015-0439.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2014-9422 · Vendor Advisory
• http://ubuntu.com/usn/USN-2498-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10004-1 · Vendor Advisory
• https://debian.org/security/2015/dsa-3153 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-9423 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2015-0439.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2014-9422 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2015:0290-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-5353 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2015-0066 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2015-0794.html · Vendor Advisory