CVE-2017-14120 Path traversal in n/a
Attackers can write files to arbitrary directories via crafted RAR v2 archives, potentially overwriting critical system files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-14120?
CVE-2017-14120 is a high-severity path traversal vulnerability in Debian Debian Linux, published on 3 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a directory traversal vulnerability for RAR v2 archives: pathnames of the form ../[filename] are unpacked into the upper directory.
Weakness: CWE-22
Which versions are affected by CVE-2017-14120?
It affects 2 products.
Products include Debian Debian Linux, Rarlab Unrar.
How do I fix CVE-2017-14120?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-14120 being exploited?
There is no known exploitation of CVE-2017-14120 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-14120, DLA-1091-1, GHSA-29ph-vc5w-7vvg, UBUNTU-CVE-2017-14120.