### [CVE-2011-4122](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4122)
![](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

Directory traversal vulnerability in openpam_configure.c in OpenPAM before r478 on FreeBSD 8.1 allows local users to load arbitrary DSOs and gain privileges via a .. (dot dot) in the service_name argument to the pam_start function, as demonstrated by a .. in the -c option to kcheckpass.

### POC

#### Reference
- http://c-skills.blogspot.com/2011/11/openpam-trickery.html
- http://stealth.openwall.net/xSports/pamslam

#### Github
- https://github.com/Snoopy-Sec/Localroot-ALL-CVE