CVE-2023-38690

matrix-appservice-irc IRC command injection via admin commands containing newlines

State: Published
Severity: 5.8 Medium
Published: Aug 4, 2023
Updated: Oct 8, 2024
Reserved: Jul 24, 2023

Description

matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it is possible to craft a command with newlines which would not be properly parsed. This would mean you could pass a string of commands as a channel name, which would then be run by the IRC bridge bot. Versions 1.0.1 and above are patched. There are no robust workarounds to the bug. One may disable dynamic channels in the config to disable the most common execution method but others may exist.

Scores

CVSS	Score	Vector	Source
3.1	5.8 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

Affected Products

Product	Versions
matrix-appservice-ircmatrix-org	< 1.0.1Affected

References

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