CVEs-PoC/2017/CVE-2017-5940.md

CVE-2017-5940

Description

Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively address dotfile cases during its attempt to prevent accessing user files with an euid of zero, which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the --private option. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-5180.

POC

Reference

• https://github.com/netblue30/firejail/commit/38d418505e9ee2d326557e5639e8da49c298858f
• https://github.com/netblue30/firejail/commit/903fd8a0789ca3cc3c21d84cd0282481515592ef
• https://github.com/netblue30/firejail/commit/b8a4ff9775318ca5e679183884a6a63f3da8f863

Github

No PoCs found on GitHub currently.