CVE-2009-4411 Path traversal in n/a
Local attackers can modify ACLs of arbitrary files via symlink attacks in XFS acl tools, potentially leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-4411?
CVE-2009-4411 is a low-severity path traversal vulnerability in n/a, published on 24 Dec 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The (1) setfacl and (2) getfacl commands in XFS acl 2.2.47, when running in recursive (-R) mode, follow symbolic links even when the --physical (aka -P) or -L option is specified, which might allow local users to modify the ACL for arbitrary files or directories via a symlink attack.
Weakness: CWE-264
Which versions are affected by CVE-2009-4411?
It affects 1 product.
Products include Xfs Acl.
How do I fix CVE-2009-4411?
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-2009-4411 being exploited?
There is no known exploitation of CVE-2009-4411 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2009-4411, GHSA-v9h8-c2x4-crx9.