matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it is possible to craft a command with newlines which would not be properly parsed. This would mean you could pass a string of commands as a channel name, which would then be run by the IRC bridge bot. Versions 1.0.1 and above are patched. There are no robust workarounds to the bug. One may disable dynamic channels in the config to disable the most common execution method but others may exist.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-08-04T16:31:41.840Z

Updated: 2024-08-02T17:46:56.774Z

Reserved: 2023-07-24T16:19:28.363Z

Link: CVE-2023-38690

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-08-04T17:15:10.783

Modified: 2023-08-11T18:58:41.037

Link: CVE-2023-38690

cve-icon Redhat

No data.