CVE-2022-29855 Auth bypass in n/a
An attacker with physical access can bypass authentication during startup to gain root privileges and execute code on Mitel SIP phones.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-29855?
CVE-2022-29855 is a medium-severity authentication bypass vulnerability in n/a, published on 11 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Mitel 6800 and 6900 Series SIP phone devices through 2022-04-27 have "undocumented functionality." A vulnerability in Mitel 6800 Series and 6900 Series SIP phones excluding 6970, versions 5.1 SP8 (5.1.0.8016) and earlier, and 6.0 (6.0.0.368) through 6.1 HF4 (6.1.0.165), could allow a unauthenticated attacker with physical access to the phone to gain root access due to insufficient access control for test functionality during system startup. A successful exploit could allow access to sensitive information and code execution.
Which versions are affected by CVE-2022-29855?
It affects 9 products.
Products include Mitel 6865i Sip Firmware, Mitel 6867i Sip Firmware, Mitel 6869i Sip Firmware, Mitel 6873i Sip Firmware, Mitel 6905 Sip Firmware, Mitel 6910 Sip Firmware and 3 more.
How do I fix CVE-2022-29855?
No fix has been published for CVE-2022-29855 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-29855 being exploited?
There is no known exploitation of CVE-2022-29855 in the wild and no public exploit code.
Sources
Also known as GHSA-4f6f-x4m3-rhqj.