Description
The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.
Metrics
CVSS 2.0 5.8/10
AV:N/AC:M/Au:N/C:P/I:P/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- May 25, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified