Description
An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
MIT krb5
1.16.1affected
References
- https://github.com/krb5/krb5/pull/694/commits/50fe4074f188c2d4da0c421e96553acea8378db2 ↗
- http://www.securityfocus.com/bid/100511 ↗
- https://github.com/krb5/krb5/pull/694/commits/1de6ca2f2eb1fdbab51f1549a25a6903aefcc196 ↗
- https://github.com/krb5/krb5/pull/694 ↗
- https://access.redhat.com/errata/RHSA-2018:0666 ↗
- https://github.com/krb5/krb5/pull/694/commits/b7af544e50a4d8291524f590e20dd44430bf627d ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7562 ↗