CVE-2015-6927 Path traversal in n/a
Local container root users can exploit symlink handling to change passwords for arbitrary ploop containers, leading to privilege escalation and control panel access.
- 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-2015-6927?
CVE-2015-6927 is a low-severity path traversal vulnerability in n/a, published on 28 Sep 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.
Weakness: CWE-59
Which versions are affected by CVE-2015-6927?
It affects 1 product.
Products include Openvz Vzctl.
How do I fix CVE-2015-6927?
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-2015-6927 being exploited?
There is no known exploitation of CVE-2015-6927 in the wild and no public exploit code.
Sources
Also known as DSA-3357-1, GHSA-h76c-22cc-xhhx.