Remote code execution in Mitel MiVoice Connect

1) OS Command Injection

EUVDB-ID: #VU64674

Risk: Critical

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-29499

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the Mitel Service Appliance component of MiVoice Connect (Mitel Service Appliances – SA 100, SA 400, and Virtual SA). A remote unauthenticated attacker can send a specially crafted HTTP GET request to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MiVoice Connect: 14.2 - 19.2 SP3

External links

http://www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-0002
http://www.bleepingcomputer.com/news/security/mitel-zero-day-used-by-hackers-in-suspected-ransomware-attack/
http://www.mitel.com/-/media/mitel/file/pdf/support/security-advisories/security-bulletin_22-0002-001-v2.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.