Critical severity · published May 6, 2022
CVE-2022-28005
An issue was discovered in the 3CX Phone System Management Console prior to version 18 Update 3 FINAL
9.8
CVSS
8.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.3% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
3C
3cx · 3cx
through 18.0.3.450 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-28005
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-28005
medium.com
https://medium.com/%40frycos/pwning-3cx-phone-management-backends-from-the-internet-d0096339dd88
Release Notes
https://www.3cx.com/blog/change-log/phone-system-change-log/
Release Notes
https://www.3cx.com/blog/releases/v18-security-hotfix/
Release Notes
https://www.3cx.com/blog/releases/v18-update-3-final/
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