Description
Attackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to grant themselves permissions in the channel.
Recommendation
Update the matrix-appservice-irc package to the latest compatible version. Followings are version details:
- Affected version(s): < 0.35.0
- Patched version(s): 0.35.0
References
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Start a free scanRelated Issues
- Improper handling of multiline messages in node-irc affects matrix-appservice-irc - CVE-2022-29166
- Matrix-appservice-irc vulnerable to sql injection via roomIds argument - CVE-2022-3971
- matrix-appservice-irc vulnerable to IRC mode parameter confusion - CVE-2022-39202
- matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms - CVE-2023-38700
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See something that needs correcting? Let us knowUpdated January 29, 2023