cve/2015/CVE-2015-2694.md

### [CVE-2015-2694](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2694)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### 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.

### POC

#### Reference
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604

#### Github
No PoCs found on GitHub currently.