miguelgrinberg/python-engineio · Security
python-engineio vulnerable to Cross-Site Request Forgery (CSRF)
- GHSA ID
- GHSA-j3jp-gvr5-7hwq
- CVE ID
- CVE-2019-13611
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
WebSocket cross-origin vulnerability
Impact
This is a Cross-Site Request Forgery (CSRF) vulnerability. It affects Socket.IO and Engine.IO web servers that authenticate clients using cookies.
Patches
python-engineio version 3.9.0 patches this vulnerability by adding server-side Origin header checks.
Workarounds
Do not use cookies for client authentication, or else add a CSRF token to the connection URL.
References
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF) https://www.christian-schneider.net/CrossSiteWebSocketHijacking.html
For more information
If you have any questions or comments about this advisory:
- Open an issue in python-engineio
CWEs
- CWE-352 · Cross-Site Request Forgery (CSRF)
References
- https://github.com/miguelgrinberg/python-engineio/security/advisories/GHSA-j3jp-gvr5-7hwq ↗
- https://nvd.nist.gov/vuln/detail/CVE-2019-13611 ↗
- https://github.com/miguelgrinberg/python-engineio/issues/128 ↗
- https://github.com/advisories/GHSA-j3jp-gvr5-7hwq ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/python-engineio/PYSEC-2019-170.yaml ↗