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CVE-2022-29855

MEDIUMCVSS 6.8/10EPSS 0.74%

Last modified

CVE-2022-29855 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.74%

49.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Mitel6873i Sip Firmware< 5.1.0.8017
Mitel6873i Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6930 Sip Firmware< 5.1.0.8017
Mitel6930 Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6940 Sip Firmware< 5.1.0.8017
Mitel6940 Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6865i Sip Firmware< 5.1.0.8017
Mitel6865i Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6867i Sip Firmware< 5.1.0.8017
Mitel6867i Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6869i Sip Firmware< 5.1.0.8017
Mitel6869i Sip Firmware>= 6.0.0.368, < 6.1.0.171
Mitel6920 Sip Firmware<= 5.1.0.8016
Mitel6920 Sip Firmware>= 6.0.0.368, <= 6.1.0.165
Mitel6910 Sip Firmware<= 5.1.0.8016
Mitel6910 Sip Firmware>= 6.0.0.368, <= 6.1.0.165
Mitel6905 Sip Firmware<= 5.1.0.8016
Mitel6905 Sip Firmware>= 6.0.0.368, <= 6.1.0.165

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-29855?
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.
How severe is CVE-2022-29855?
CVE-2022-29855 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.
How do I fix CVE-2022-29855?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29855?

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Source: NVD / NIST