GHSA-xvg8-m4x3-w6xr

Source

https://github.com/advisories/GHSA-xvg8-m4x3-w6xr

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/11/GHSA-xvg8-m4x3-w6xr/GHSA-xvg8-m4x3-w6xr.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-xvg8-m4x3-w6xr

Aliases

CVE-2024-50336

Published

2024-11-12T19:54:38Z

Modified

2024-11-12T20:12:16.194200Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N CVSS Calculator

Summary

matrix-js-sdk has insufficient MXC URI validation which allows client-side path traversal

Details

Summary

matrix-js-sdk before 34.11.0 is vulnerable to client-side path traversal via crafted MXC URIs. A malicious room member can trigger clients based on the matrix-js-sdk to issue arbitrary authenticated GET requests to the client's homeserver.

Details

The Matrix specification demands homeservers to perform validation of the server-name and media-id components of MXC URIs with the intent to prevent path traversal. However, it is not mentioned that a similar check must also be performed on the client to prevent client-side path traversal. matrix-js-sdk fails to perform this validation.

Patches

Fixed in matrix-js-sdk 34.11.1.

Workarounds

None.

References

https://spec.matrix.org/v1.12/client-server-api/#security-considerations-5
https://blog.doyensec.com/2024/07/02/cspt2csrf.html

Database specific

{
    "nvd_published_at": "2024-11-12T17:15:09Z",
    "severity": "MODERATE",
    "github_reviewed_at": "2024-11-12T19:54:38Z",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-22"
    ]
}

References

Affected packages

npm / matrix-js-sdk

Package

Name: matrix-js-sdk; View open source insights on deps.dev
Purl: pkg:npm/matrix-js-sdk

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

34.11.1