CVE-2023-38700

matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms

Published: Aug 4, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-200

3.5LOW

Description

matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target. Version 1.0.1n fixes this issue. As a workaround, set the `matrixHandler.eventCacheSize` config value to `0`. This workaround may impact performance.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-200 NVD-CWE-noinfo

Affected Products

matrix

oss-project·GBaka javascript sdk, synapse, matrix irc bridge

matrix irc bridgeOn-prem

Communications / messaging-chat

matrix-org

oss-project·DEaka matrix-js-sdk, matrix appservice irc, synapse

matrix-appservice-ircOn-prem

Communications / messaging-chat

npm

package-ecosystem

matrix-appservice-irc

OSS Libraries

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75

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-c7hh-3v6c-fj4q

github.com

and 2 more references View all →

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