CVE-2024-2698 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2024-2698 Interim 1 3 2025-02-16T01:49:37Z current 2024-07-03T23:25:48Z 2025-02-16T01:49:37Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2024-2698 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. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings 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 ipa-client-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-client-common-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-client-epn-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-client-samba-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-common-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-selinux-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-server-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-server-common-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-server-dns-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 ipa-server-trust-ad-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 python3-ipaclient-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 python3-ipalib-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 python3-ipaserver-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 python3-ipatests-4.11.0-15.el9_4 as a component of SUSE Liberty Linux 9 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. CVE-2024-2698 SUSE Liberty Linux 9:ipa-client-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-client-common-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-client-epn-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-client-samba-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-common-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-selinux-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-server-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-server-common-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-server-dns-4.11.0-15.el9_4 SUSE Liberty Linux 9:ipa-server-trust-ad-4.11.0-15.el9_4 SUSE Liberty Linux 9:python3-ipaclient-4.11.0-15.el9_4 SUSE Liberty Linux 9:python3-ipalib-4.11.0-15.el9_4 SUSE Liberty Linux 9:python3-ipaserver-4.11.0-15.el9_4 SUSE Liberty Linux 9:python3-ipatests-4.11.0-15.el9_4 important