Vulnerability Details : CVE-2023-33185
Potential exploit
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.
Products affected by CVE-2023-33185
- cpe:2.3:a:django-ses_project:django-ses:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-33185
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-33185
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
NIST | |
4.6
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L |
1.2
|
3.4
|
GitHub, Inc. |
CWE ids for CVE-2023-33185
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2023-33185
-
https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md
django-ses/001-cert-url-signature-verification.md at 3d627067935876487f9938310d5e1fbb249a7778 · django-ses/django-ses · GitHubExploit;Third Party Advisory
-
https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795
Restrict amazonaws allowed certificate URLs. · django-ses/django-ses@b71b5f4 · GitHubPatch
-
https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25
Certificate URL: signature verification exposure · Advisory · django-ses/django-ses · GitHubVendor Advisory
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