GitHub Advisoryadvisory · PyPI
GHSA-qg36-9jxh-fj25 Incorrect signature verification in django-ses
LOW
Official page ↗
- Aliases
- CVE-2023-33185
- Ecosystem
- PyPI
- Packages
- django-ses
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
- Weaknesses
- CWE-347
- Reviewed
- 2023-05-22
Affected packages
• PyPI django-ses: < 3.5.0 → fixed in 3.5.0
Description
The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates.
Related
Alias · CVE (1)
- CVE-2023-33185 Django-SES is a drop-in mail backend for Django. vulnerability
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25 web
- https://nvd.nist.gov/vuln/detail/CVE-2023-33185 advisory
- https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795 web
- https://github.com/django-ses/django-ses package
- https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md web
- https://github.com/pypa/advisory-database/tree/main/vulns/django-ses/PYSEC-2023-82.yaml web