CVE-2023-33185

Public Exploit
Incorrect signature verification in django-ses

Description

Django-SES is a drop-in mail backend for Django. 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. This issue was patched in version 3.5.0.

Category

4.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory github.com
Affected: django-ses django-ses
Published at:
Updated at:

References

Link Tags
https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25 vendor advisory
https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795 patch
https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-33185?
CVE-2023-33185 has been scored as a medium severity vulnerability.
How to fix CVE-2023-33185?
To fix CVE-2023-33185, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-33185 being actively exploited in the wild?
It is possible that CVE-2023-33185 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-33185?
CVE-2023-33185 affects django-ses django-ses.
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