Vulnerability Description
Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django's similar ASGIHandler, available from Django 3.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Djangoproject | Channels | >= 3.0.0, < 3.0.3 |
Related Weaknesses (CWE)
References
- https://channels.readthedocs.io/en/stable/releases/3.0.3.htmlExploitVendor Advisory
- https://channels.readthedocs.io/en/stable/releases/index.htmlRelease NotesVendor Advisory
- https://github.com/django/channels/releasesThird Party Advisory
- https://channels.readthedocs.io/en/stable/releases/3.0.3.htmlExploitVendor Advisory
- https://channels.readthedocs.io/en/stable/releases/index.htmlRelease NotesVendor Advisory
- https://github.com/django/channels/releasesThird Party Advisory
FAQ
What is CVE-2020-35681?
CVE-2020-35681 is a vulnerability with a CVSS score of 7.4 (HIGH). Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type request...
How severe is CVE-2020-35681?
CVE-2020-35681 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-35681?
Check the references section above for vendor advisories and patch information. Affected products include: Djangoproject Channels.