CVE-2021-45115

Aliases:GHSA-53qw-q765-4fwwBIT-django-2021-45115PYSEC-2022-1
Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 04 Jan 2022, 23:16
Last modified:04 Aug 2024, 04:39

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.41% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Jan 2022, 23:16
Published
Vulnerability first disclosed
04 Aug 2024, 04:39
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v4.0•HIGH•Score: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.41%• Percentile: 62%

Affected Systems

  • djangoproject•django

    ≥ 2.2, < 2.2.26 | ≥ 3.2, < 3.2.11 | ≥ 4.0, < 4.0.1

  • fedoraproject•fedora

    35

  • PyPI•django

    ≥ 2.2a1, < 2.2.26 | ≥ 3.2a1, < 3.2.11 | ≥ 4.0a1, < 4.0.1 | ≥ 4.0, < 4.0.1

References (17)