CVE-2013-4420 Path traversal in n/a
Remote attackers can overwrite arbitrary files via directory traversal in crafted tar files processed by libtar.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2013-4420?
CVE-2013-4420 is a medium-severity path traversal vulnerability in n/a, published on 20 Feb 2014. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Multiple directory traversal vulnerabilities in the (1) tar_extract_glob and (2) tar_extract_all functions in libtar 1.2.20 and earlier allow remote attackers to overwrite arbitrary files via a .. (dot dot) in a crafted tar file.
Weakness: CWE-22
Which versions are affected by CVE-2013-4420?
It affects 1 product.
Products include Feep Libtar.
How do I fix CVE-2013-4420?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2013-4420 being exploited?
There is no known exploitation of CVE-2013-4420 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-34945, AZL-6651, DEBIAN-CVE-2013-4420, DSA-2863-1, GHSA-35h8-7h6c-x54q, MGASA-2014-0090.