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CVE-2023-38690

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

Published: Aug 4, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-20
NVD MITRE
5.8CVSSMEDIUM
EPSS Score
0.8%
Top 49.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-20CWE-77

Affected Products

matrix irc bridgematrix
Mixed
Communications / messaging-chat
matrix-appservice-ircmatrix-org
Mixed
Communications / messaging-chat
matrix-appservice-ircnpmOSS Libraries
matrixoss-projectGBCommunicationsaka synapse, matrix irc bridge, javascript sdk
matrix-orgoss-projectDECommunicationsaka synapse, matrix-js-sdk, matrix appservice irc
npmpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/matrix-org/matrix-appservice-irc/commit/0afb064635d37e039067b5b3d6423448b93026d3
github.com
https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1
github.com
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-3pmj-jqqp-2mj3
github.com
and 2 more references View all →

Timeline

Published
Aug 4, 2023
Last Updated
Nov 21, 2024

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