Threats Tagged '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.

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Red Hat Identity Management (IdM) has two important security vulnerabilities affecting its freeipa component. The first (CVE-2024-2698) allows a proxy service to impersonate any user to access other target services due to delegation rule flaws. The second (CVE-2024-3183) enables a user to obtain password hashes of all domain users and attempt offline brute force attacks. These vulnerabilities impact Red Hat Enterprise Linux 9.2 Extended Update Support and related variants. A security update addressing these issues is available from Red Hat.

Red Hat Identity Management (IdM) has two important security vulnerabilities affecting the freeipa component. One vulnerability (CVE-2024-2698) allows a proxy service to impersonate any user to access other target services due to delegation rule flaws. The second vulnerability (CVE-2024-3183) enables a user to obtain password hashes of all domain users and perform offline brute force attacks. Red Hat has released security updates for Red Hat Enterprise Linux 9 and related products to address these issues.