GHSA-j3jp-gvr5-7hwq
python-engineio vulnerable to Cross-Site Request Forgery (CSRF)
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | python-engineio | < 3.9.0 | 3.9.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
## 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](http://github.com/miguelgrinberg/python-engineio)
References
External links from the advisory. They lead to third-party sites.
- 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/miguelgrinberg/python-engineio
- https://github.com/pypa/advisory-database/tree/main/vulns/python-engineio/PYSEC-2019-170.yaml