PT-2010-1101 · Mit+1 · Mit Kerberos 5+1

Published 2010-11-30 · Updated 2024-06-15 · CVE-2010-4020

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MIT Kerberos 5 (aka krb5) versions 1.8.x through 1.8.3 MIT Kerberos 5 (aka krb5) versions prior to 1.9.2-r1

Description The issue allows remote authenticated users to potentially forge signatures, such as AD-SIGNEDPATH or AD-KDC-ISSUED, and possibly gain privileges by leveraging the small key space resulting from certain one-byte stream-cipher operations. This could lead to a violation of confidentiality, integrity, and availability of protected information. The exploitation of this issue can be done remotely.

Recommendations For versions 1.8.x through 1.8.3, update to a version later than 1.8.3 to resolve the issue. For versions prior to 1.9.2-r1, update to version 1.9.2-r1 or later to resolve the issue. As a temporary workaround, consider restricting access to sensitive operations that rely on the affected signature mechanisms until a patch is available.

Fix

Weakness Enumeration

CWE-310

Related Identifiers

BDU:2015-09426

CVE-2010-4020

OPENSUSE-SU-2024:10004-1

RHSA-2010:0925

RHSA-2010_0925

Affected Products

Mit Kerberos 5

Red Hat

References · 89

• http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2010-0925.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2011-0200.html · Vendor Advisory
• http://secunia.com/advisories/42399 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2010-4020 · Security Note
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2010-4020 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-09426 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2010-4020 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2010-4020 · Vendor Advisory
• http://oracle.com/technetwork/topics/security/cpujul2015-2367936.html · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html · Vendor Advisory
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt · Vendor Advisory
• http://ubuntu.com/usn/USN-1030-1 · Vendor Advisory