CVE-2008-4405 Missing authorization in n/a
Guest OS users can cause denial of service and other impacts by improperly writing to xenstore directories due to insufficient access restrictions in Xen.
- 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-2008-4405?
CVE-2008-4405 is a high-severity missing authorization vulnerability in n/a, published on 3 Oct 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen.
Weakness: CWE-264
Which versions are affected by CVE-2008-4405?
It affects 1 product.
Products include Citrix Xen.
How do I fix CVE-2008-4405?
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-2008-4405 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4405 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-ffpp-v4vp-9vvh.