Vulnerability Monitor

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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.

Published

2022-05-11T20:15:08.787

Last Modified

2024-11-21T06:59:49.933

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	mitel	6873i_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6873i_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6873i_sip	-	No
Operating System	mitel	6930_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6930_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6930_sip	-	No
Operating System	mitel	6940_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6940_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6940_sip	-	No
Operating System	mitel	6865i_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6865i_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6865i_sip	-	No
Operating System	mitel	6867i_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6867i_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6867i_sip	-	No
Operating System	mitel	6869i_sip_firmware	< 5.1.0.8017	Yes
Operating System	mitel	6869i_sip_firmware	< 6.1.0.171	Yes
Hardware	mitel	6869i_sip	-	No
Operating System	mitel	6920_sip_firmware	≤ 5.1.0.8016	Yes
Operating System	mitel	6920_sip_firmware	≤ 6.1.0.165	Yes
Hardware	mitel	6920_sip	-	No
Operating System	mitel	6910_sip_firmware	≤ 5.1.0.8016	Yes
Operating System	mitel	6910_sip_firmware	≤ 6.1.0.165	Yes
Hardware	mitel	6910_sip	-	No
Operating System	mitel	6905_sip_firmware	≤ 5.1.0.8016	Yes
Operating System	mitel	6905_sip_firmware	≤ 6.1.0.165	Yes
Hardware	mitel	6905_sip	-	No

References

http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor-Access.html Exploit, Third Party Advisory, VDB Entry ([email protected])
http://seclists.org/fulldisclosure/2022/Jun/32 Exploit, Mailing List, Third Party Advisory ([email protected])
https://www.mitel.com/support/security-advisories Vendor Advisory ([email protected])
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0004 Vendor Advisory ([email protected])
https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021 Third Party Advisory ([email protected])
http://packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor-Access.html Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2022/Jun/32 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mitel.com/support/security-advisories Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0004 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phones-syss-2022-021 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)