Description
usb-creator before 0.2.38.3ubuntu0.1 on Ubuntu 12.04 LTS, before 0.2.56.3ubuntu0.1 on Ubuntu 14.04 LTS, before 0.2.62ubuntu0.3 on Ubuntu 14.10, and before 0.2.67ubuntu0.1 on Ubuntu 15.04 allows local users to gain privileges by leveraging a missing call check_polkit for the KVMTest method.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | usb-creator | 0.2.56.3ubuntu0.1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- usb-creator 0.2.x (Ubuntu 12.04/14.04/14.10) - Local Privilege Escalation EDB-36820 · local · Apr 23, 2015
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- USN-2576-2 vendor-advisory
- 36820 exploit
- https://bazaar.launchpad.net/~usb-creator-hackers/usb-creator/trunk/revision/470
- [oss-security] 20150504 Re: USBCreator D-Bus service mailing-list
- USN-2576-1 vendor-advisory
- 74304 vdb-entry
- [oss-security] 20150422 USBCreator D-Bus service mailing-list