Vulnerability in Djangoproject Django
CVE-2021-45115
An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: +0.000
Affected products
- Djangoproject Django
- Fedoraproject Fedora — versions 35
Public proof-of-concept exploits
References
- groups.google.com/forum/
- docs.djangoproject.com/en/4.0/releases/security/ (Patch, Vendor Advisory)
- www.djangoproject.com/weblog/2022/jan/04/security-releases/ (Patch, Vendor Advisory)
- security.netapp.com/advisory/ntap-20220121-0005/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-45115?
- CVE-2021-45115 is a high-severity vulnerability in Djangoproject Django. CVSS score: 7.5/10. Published 2022-01-05.
- How severe is CVE-2021-45115?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-45115 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.