CVE-2022-29855

Public Exploit

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.

6.8

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.27%

Vendor Advisory mitel.com Vendor Advisory mitel.com

Affected: n/a n/a

References

Link	Tags
https://www.mitel.com/support/security-advisories	vendor advisory
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0004	vendor advisory
https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021	third party advisory
http://seclists.org/fulldisclosure/2022/Jun/32	mailing list exploit third party advisory
http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor-Access.html	exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-29855?: CVE-2022-29855 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29855?: To fix CVE-2022-29855, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29855 being actively exploited in the wild?: It is possible that CVE-2022-29855 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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