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.
References
Configurations
No configuration.
History
21 Nov 2024, 09:14
Type | Values Removed | Values Added |
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References | () https://github.com/matrix-org/matrix-appservice-irc/blob/d5d67d1d3ea3f0f6962a0af2cc57b56af3ad2129/config.sample.yaml#L601-L604 - | |
References | () https://github.com/matrix-org/matrix-appservice-irc/pull/1799 - | |
References | () https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-wm4w-7h2q-3pf7 - |
15 Apr 2024, 13:15
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Summary |
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12 Apr 2024, 20:15
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New CVE |
Information
Published : 2024-04-12 20:15
Updated : 2024-11-21 09:14
NVD link : CVE-2024-32000
Mitre link : CVE-2024-32000
CVE.ORG link : CVE-2024-32000
JSON object : View
Products Affected
No product.