CRITICAL

CVE-2022-28005

CVSS v3

9.8

CRITICAL

EPSS Score

26.5%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL. An unauthenticated attacker could abuse improperly secured access to arbitrary files on the server (via /Electron/download directory traversal in conjunction with a path component that uses backslash characters), leading to cleartext credential disclosure. Afterwards, the authenticated attacker is able to upload a file that overwrites a 3CX service binary, leading to Remote Code Execution as NT AUTHORITY\\SYSTEM on Windows installations. NOTE: this issue exists because of an incomplete fix for CVE-2022-48482.

Technical details

Published
5/6/2022

Frequently asked questions

What is CVE-2022-28005?

An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL. An unauthenticated attacker could abuse improperly secured access to arbitrary files on the server (via /Electron/download directory traversal in conjunction with a path component that uses backslash characters), leading to cleartext credential disclosure. Afterwards, the authenticated attacker is able to upload a file that overwrites a 3CX service binary, leading to Remote Code Execution as NT AUTHORITY\\SYSTEM on Windows installations. NOTE: this issue exists because of an incomplete fix for CVE-2022-48482.

Is CVE-2022-28005 actively exploited?

Active exploitation of CVE-2022-28005 has not been confirmed. The EPSS score is 26.5%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-28005?

CVE-2022-28005 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-28005 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.