CVE-2022-28005

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.21% Top 15%
Vendor Advisory 3cx.com Vendor Advisory 3cx.com Vendor Advisory 3cx.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.3cx.com/blog/change-log/phone-system-change-log/ release notes vendor advisory
https://www.3cx.com/blog/releases/v18-update-3-final/ release notes vendor advisory
https://www.3cx.com/blog/releases/v18-security-hotfix/ release notes vendor advisory
https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88

Frequently Asked Questions

What is the severity of CVE-2022-28005?
CVE-2022-28005 has been scored as a critical severity vulnerability.
How to fix CVE-2022-28005?
To fix CVE-2022-28005, 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-2022-28005 being actively exploited in the wild?
It is possible that CVE-2022-28005 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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