Vulnerability identifier: #VU74216
Vulnerability risk: Critical
CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-506
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Electron Mac App
Client/Desktop applications /
Messaging software
Electron Windows App
Client/Desktop applications /
Messaging software
Vendor: 3CX
Description
The vulnerability allows a remote attacker to gain unauthorized access to the application.
The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) that allows a remote attacker to gain unauthorized access to the application.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Electron Mac App: 18.11.1213 - 18.12.416
Electron Windows App: 18.12.407 - 18.12.416
External links
http://www.3cx.com/blog/news/desktopapp-security-alert/
http://www.sentinelone.com/blog/smoothoperator-ongoing-campaign-trojanizes-3cx-software-in-software-supply-chain-attack/
http://www.crowdstrike.com/blog/crowdstrike-detects-and-prevents-active-intrusion-campaign-targeting-3cxdesktopapp-customers/
http://success.trendmicro.com/dcx/s/solution/000292711?language=en_US
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?
Yes. This vulnerability is being exploited in the wild.