Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mitel | 6873I Sip Firmware | < 5.1.0.8017 |
| Mitel | 6873I Sip | - |
| Mitel | 6930 Sip Firmware | < 5.1.0.8017 |
| Mitel | 6930 Sip | - |
| Mitel | 6940 Sip Firmware | < 5.1.0.8017 |
| Mitel | 6940 Sip | - |
| Mitel | 6865I Sip Firmware | < 5.1.0.8017 |
| Mitel | 6865I Sip | - |
| Mitel | 6867I Sip Firmware | < 5.1.0.8017 |
| Mitel | 6867I Sip | - |
| Mitel | 6869I Sip Firmware | < 5.1.0.8017 |
| Mitel | 6869I Sip | - |
| Mitel | 6920 Sip Firmware | <= 5.1.0.8016 |
| Mitel | 6920 Sip | - |
| Mitel | 6910 Sip Firmware | <= 5.1.0.8016 |
| Mitel | 6910 Sip | - |
| Mitel | 6905 Sip Firmware | <= 5.1.0.8016 |
| Mitel | 6905 Sip | - |
References
- http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-BaExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2022/Jun/32ExploitMailing ListThird Party Advisory
- https://www.mitel.com/support/security-advisoriesVendor Advisory
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisorVendor Advisory
- https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-deThird Party Advisory
- http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-BaExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2022/Jun/32ExploitMailing ListThird Party Advisory
- https://www.mitel.com/support/security-advisoriesVendor Advisory
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisorVendor Advisory
- https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-deThird Party Advisory
FAQ
What is CVE-2022-29855?
CVE-2022-29855 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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...
How severe is CVE-2022-29855?
CVE-2022-29855 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-29855?
Check the references section above for vendor advisories and patch information. Affected products include: Mitel 6873I Sip Firmware, Mitel 6873I Sip, Mitel 6930 Sip Firmware, Mitel 6930 Sip, Mitel 6940 Sip Firmware.