CVE-2023-33185 MEDIUM

CVE-2023-33185: Incorrect signature verification in django-ses

Vendor Django-Ses
Product django-ses
Weakness CWE-347
Published May 26, 2023
Last update January 14, 2025

CVSS base score

4.6/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 26, 2023 CVE published
January 14, 2025 Record updated