cve/2015/CVE-2015-3202.md

### [CVE-2015-3202](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3202)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20n%2Fa%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

fusermount in FUSE before 2.9.3-15 does not properly clear the environment before invoking (1) mount or (2) umount as root, which allows local users to write to arbitrary files via a crafted LIBMOUNT_MTAB environment variable that is used by mount's debugging feature.

### POC

#### Reference
- http://packetstormsecurity.com/files/132021/Fuse-Local-Privilege-Escalation.html
- http://www.ubuntu.com/usn/USN-2617-2
- https://www.exploit-db.com/exploits/37089/

#### Github
- https://github.com/ARPSyndicate/cvemon