3CX Desktop App Supply Chain Attack Leaves Millions at Risk - Urgent Update on the Way!

3CX said it's working on a software update for its desktop app after multiple cybersecurity vendors sounded the alarm on what appears to be an active supply chain attack that's using digitally signed and rigged installers of the popular voice and video conferencing software to target downstream...

[Updated April 3] 3CX desktop app used in a supply chain attack

Researchers have found that the 3CX desktop app may be compromised and used in supply chain attacks. The 3CX Desktop App is a Voice over Internet Protocol VoIP type of application which is available for Windows, macOS, Linux and mobile. Many large corporations use it internally to make calls, vie...

Developing Story: Information on Attacks Involving 3CX Desktop App

In late March 2023, security researchers revealed that threat actors were actively abusing a popular business communication software from 3CX...

3CX Desktop App Installed (Windows)

Binary data 3cxdesktopappinstalled.nbin...

CVE-2023-29059

CVE-2023-29059 is a supply-chain compromise affecting the 3CX DesktopApp (Windows Electron: 18.12.407/18.12.416; macOS Electron: 18.11.1213/18.12.402/18.12.407/18.12.416). The initial installer drops legitimate 3CX components, then loads a malicious ffmpeg.dll that loads d3dcompiler_47.dll, which...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

3CX Desktop App Installed (macOS)

Binary data macos3cxdesktopappinstalled.nbin...

Preventing and Detecting Attacks Involving 3CX Desktop App

In this blog entry, we provide technical details and analysis on the 3CX attacks as they happen. We also discuss available solutions which security teams can maximize for early detection and mitigate the impact of 3CX attacks...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

CVE-2023-29059: Undefined Security Weakness

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

3CX DesktopApp Malware

The version of the 3CX DesktopApp installed on the remote host contains malware. In the absence of a published vendor advisory, current guidance from 3CX and other sources is to uninstall this software and await an updated version to be published by the vendor. %NASLMINLEVEL 80900 C Tenable, Inc...

Command injection

PhoneSystem Terminal in 3CX Phone System Debian based installation 16.0.0.1570 allows an attacker to gain root privileges by using sudo with the tcpdump command, without a password. This occurs because the -z aka postrotate-command option to tcpdump can be unsafe when used in conjunction with sud...

Command injection

PhoneSystem Terminal in 3CX Phone System Debian based installation 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of " followed by " mishandling...

CVE-2019-9972

The CVE-2019-9972 issue affects 3CX Phone System (Debian-based) version 16.0.0.1570, where an authenticated attacker can run arbitrary commands as the phonesystem user due to mishandling of a local input pattern: " followed by ". The vulnerability is a command injection in the PhoneSystem Termina...

CVE-2019-9972

PhoneSystem Terminal in 3CX Phone System Debian based installation 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of " followed by " mishandling...

CVE-2019-9971

The CVE-2019-9971 entry concerns PhoneSystem Terminal in 3CX Phone System (Debian-based installation) 16.0.0.1570. The issue is a privilege-escalation vulnerability where an attacker can gain root privileges by using sudo with the tcpdump command due to the -z (postrotate-command) option being un...

CVE-2019-9972: Improper Neutralization of Special Elements used in a Command

PhoneSystem Terminal in 3CX Phone System Debian based installation 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of " followed by " mishandling...

CVE-2019-9971: Improper Privilege Management

PhoneSystem Terminal in 3CX Phone System Debian based installation 16.0.0.1570 allows an attacker to gain root privileges by using sudo with the tcpdump command, without a password. This occurs because the -z aka postrotate-command option to tcpdump can be unsafe when used in conjunction with sud...

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...