GHSA-xvqg-mv25-rwvw
Dashboard / Vulnerabilities / GHSA-xvqg-mv25-rwvw
Summary: Parsing issue in matrix-org/node-irc leading to room takeovers
Details: ### Impact 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. ### Patched The vulnerability has been patched in matrix-appservice-irc 0.35.0. ### Workarounds Disable dynamic channel joining via `dynamicChannels.enabled` to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config. ### References - https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity ### Credits Discovered and reported by [Val Lorentz](https://valentin-lorentz.fr/). ### For more information If you have any questions or comments about this advisory email us at [[email protected]](mailto:[email protected]).
References: https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-xvqg-mv25-rwvw, https://nvd.nist.gov/vuln/detail/CVE-2022-39203, https://github.com/matrix-org/matrix-appservice-irc, https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity
Affected packages
Package
Name: matrix-appservice-irc
Purl: pkg:npm/matrix-appservice-irc
Affected ranges
Type: SEMVER
Events:
