CVE-2024-32000
Assigner: GitHub_M
Published: 2024-04-12T20:02:51.987Z
State: PUBLISHED
title: Truncated content of messages can be leaked from matrix-appservice-irc
problemTypes: descriptions: cweId: CWE-280
description: CWE-280: Improper Handling of Insufficient Permissions or Privileges 
type: CWE
descriptions: cweId: CWE-755
description: CWE-755: Improper Handling of Exceptional Conditions
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
affected: vendor: matrix-org
product: matrix-appservice-irc
versions: version: < 2.0.0
status: affected
descriptions: value: matrix-appservice-irc is a Node.js IRC bridge for the Matrix messaging protocol. matrix-appservice-irc before version 2.0.0 can be exploited to leak the truncated body of a message if a malicious user sends a Matrix reply to an event ID they don't have access to. As a precondition to the attack, the malicious user needs to know the event ID of the message they want to leak, as well as to be joined to both the Matrix room and the IRC channel it is bridged to. The message reply containing the leaked message content is visible to IRC channel members when this happens. matrix-appservice-irc 2.0.0 checks whether the user has permission to view an event before constructing a reply. Administrators should upgrade to this version. It's possible to limit the amount of information leaked by setting a reply template that doesn't contain the original message. See these lines `601-604` in the configuration file linked.
source: advisory: GHSA-wm4w-7h2q-3pf7
discovery: UNKNOWN