7.5
HIGH
CVE-2023-46695
Django Slow NFKC Normalization Denial of Service
Description

An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

INFO

Published Date :

Nov. 2, 2023, 6:15 a.m.

Last Modified :

Nov. 21, 2024, 8:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-46695 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Djangoproject django

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-46695 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-46695 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://docs.djangoproject.com/en/4.2/releases/security/
    Added Reference https://groups.google.com/forum/#%21forum/django-announce
    Added Reference https://security.netapp.com/advisory/ntap-20231214-0001/
    Added Reference https://www.djangoproject.com/weblog/2023/nov/01/security-releases/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Dec. 14, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://security.netapp.com/advisory/ntap-20231214-0001/ [No types assigned]
  • Initial Analysis by [email protected]

    Nov. 09, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://docs.djangoproject.com/en/4.2/releases/security/ No Types Assigned https://docs.djangoproject.com/en/4.2/releases/security/ Patch
    Changed Reference Type https://groups.google.com/forum/#%21forum/django-announce No Types Assigned https://groups.google.com/forum/#%21forum/django-announce Permissions Required
    Changed Reference Type https://www.djangoproject.com/weblog/2023/nov/01/security-releases/ No Types Assigned https://www.djangoproject.com/weblog/2023/nov/01/security-releases/ Patch, Vendor Advisory
    Added CWE NIST CWE-770
    Added CPE Configuration OR *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 3.2 up to (excluding) 3.2.23 *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 4.1 up to (excluding) 4.1.13 *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 4.2. up to (excluding) 4.2.7
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://groups.google.com/forum/#%21forum/django-announce [No types assigned]
    Removed Reference MITRE https://groups.google.com/forum/#!forum/django-announce
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-46695 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} 0.02%

score

0.48915

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability