GHSA-cq7q-5c67-w39w

Suggest an improvement
Source
https://github.com/advisories/GHSA-cq7q-5c67-w39w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/09/GHSA-cq7q-5c67-w39w/GHSA-cq7q-5c67-w39w.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-cq7q-5c67-w39w
Aliases
Related
Published
2022-09-15T03:26:25Z
Modified
2023-11-01T04:59:45.911771Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
Summary
matrix-appservice-irc vulnerable to IRC mode parameter confusion
Details

Impact

IRC allows you to specify multiple modes in a single mode command. Due to a bug in the underlying matrix-org/node-irc library, affected versions of matrix-appservice-irc perform parsing of such modes incorrectly, potentially resulting in the wrong user being given permissions.

Mode commands can only be executed by privileged users, so this can only be abused if an operator is tricked into running the command on behalf of an attacker.

Patches

The vulnerability has been patched in matrix-appservice-irc 0.35.0.

Workarounds

Refrain from entering mode commands suggested by untrusted users. Avoid using multiple modes in a single command.

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.

For more information

If you have any questions or comments about this advisory email us at security@matrix.org.

Database specific 
{
    "nvd_published_at": "2022-09-13T18:15:00Z",
    "cwe_ids": [
        "CWE-269"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-15T03:26:25Z"
}
References

Affected packages

npm / matrix-appservice-irc

Package

Name
matrix-appservice-irc
View open source insights on deps.dev
Purl
pkg:npm/matrix-appservice-irc

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.35.0