CVE-2022-39202

 

Published at: - 13-09-2022 08:15

Last modified: - 13-09-2022 10:43

Total changes: - 1

Description

matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. The Internet Relay Chat (IRC) protocol allows you to specify multiple modes in a single mode command. Due to a bug in the underlying matrix-org/node-irc library, affected versions of matrix-appservice-irc perform parsing of such modes incorrectly, potentially resulting in the wrong user being given permissions. Mode commands can only be executed by privileged users, so this can only be abused if an operator is tricked into running the command on behalf of an attacker. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround users should refrain from entering mode commands suggested by untrusted users. Avoid using multiple modes in a single command.

Common Vulnerability Scoring System (CVSS)

-

 

Verification logic

 

Reference

• https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity/
• https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-cq7q-5c67-w39w
• https://github.com/matrix-org/matrix-appservice-irc/commit/5f87dbed87b4b6dc49b7965ff152ee8535719e67

 

Keywords

NVD

 

CVE-2022-39202

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures