CVE-2024-2698

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-2698
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-2698.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-2698
Downstream
Related
Published
2024-06-12T08:15:50Z
Modified
2025-10-10T04:49:06.793066Z
Summary
[none]
Details

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 checkallowedto_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 ipadbmatchacl() 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.

References

Affected packages

Git / github.com/freeipa/freeipa

Affected ranges

Type
GIT
Repo
https://github.com/freeipa/freeipa
Events

Affected versions

Other

release-4-11-0
release-4-11-1