Upstream information

CVE-2024-2698 at MITRE

Description

A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a condition for granting the "forwardable" flag on S4U2Self tickets. Fixing this mistake required adding a special case for the check_allowed_to_delegate() function: If the target service argument is NULL, then it means the KDC is probing for general constrained delegation rules and not checking a specific S4U2Proxy request.

In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being accepted regardless of whether or not there is a matching service delegation rule.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 9
  • ipa-client >= 4.11.0-15.el9_4
  • ipa-client-common >= 4.11.0-15.el9_4
  • ipa-client-epn >= 4.11.0-15.el9_4
  • ipa-client-samba >= 4.11.0-15.el9_4
  • ipa-common >= 4.11.0-15.el9_4
  • ipa-selinux >= 4.11.0-15.el9_4
  • ipa-server >= 4.11.0-15.el9_4
  • ipa-server-common >= 4.11.0-15.el9_4
  • ipa-server-dns >= 4.11.0-15.el9_4
  • ipa-server-trust-ad >= 4.11.0-15.el9_4
  • python3-ipaclient >= 4.11.0-15.el9_4
  • python3-ipalib >= 4.11.0-15.el9_4
  • python3-ipaserver >= 4.11.0-15.el9_4
  • python3-ipatests >= 4.11.0-15.el9_4
 Patchnames:
RHSA-2024:3754

SUSE Timeline for this CVE

CVE page created: Mon Jun 10 16:00:29 2024
CVE page last modified: Sat Aug 24 19:16:59 2024