CVE-2015-6927 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 t...
LowCVSS 3.6
EPSS 0.50%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openvz vzctl | <= 4.9.3 | No fix listed |
References
- DSA-3357 vendor-advisory
- openvz.org patch
- GLSA-201701-30 vendor-advisory
- src.openvz.org exploit