CVE-2013-2211 Missing authorization in n/a
Local guest administrators can modify xenstore values for serial consoles due to weak permissions, potentially leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-2211?
CVE-2013-2211 is a high-severity missing authorization vulnerability in Xen Xen, published on 28 Aug 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The libxenlight (libxl) toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors.
Weakness: CWE-264
Which versions are affected by CVE-2013-2211?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2013-2211?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2013-2211 being exploited?
There is no known exploitation of CVE-2013-2211 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2013-2211, GHSA-446j-5cq2-4x7c.