CVE-2009-4118 Denial of service in n/a
Local users can crash the Cisco VPN client service and disconnect VPN sessions by manually starting the service executable while it is already running.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2009-4118?
CVE-2009-4118 is a low-severity denial of service vulnerability in n/a, published on 1 Dec 2009. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The StartServiceCtrlDispatcher function in the cvpnd service (cvpnd.exe) in Cisco VPN client for Windows before 5.0.06.0100 does not properly handle an ERROR_FAILED_SERVICE_CONTROLLER_CONNECT error, which allows local users to cause a denial of service (service crash and VPN connection loss) via a manual start of cvpnd.exe while the cvpnd service is running.
Which versions are affected by CVE-2009-4118?
It affects 1 product.
Products include Cisco Vpn Client.
How do I fix CVE-2009-4118?
No fix has been published for CVE-2009-4118 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2009-4118 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-4118 exists.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-r65m-rpw4-4w3f.