CVE-2021-45115
django: Denial-of-service possibility in UserAttributeSimilarityValidator
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Se ha detectado un problema en Django versiones 2.2 anteriores a 2.2.26, 3.2 anteriores a 3.2.11 y 4.0 anteriores a 4.0.1. UserAttributeSimilarityValidator incurría en una sobrecarga significativa al evaluar una contraseña enviada que era artificialmente grande en relación con los valores de comparación. En una situación en la que el acceso al registro de usuarios no estaba restringido, esto proporcionaba un vector potencial para un ataque de denegación de servicio.
A resource-consumption flaw was found in django's UserAttributeSimilarityValidator, where it incurred significant overhead evaluating any submitted password that was artificially large relative to comparison values. A network attacker could exploit this flaw to cause a denial of service.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-12-16 CVE Reserved
- 2022-01-04 CVE Published
- 2024-08-04 CVE Updated
- 2024-09-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://groups.google.com/forum/#%21forum/django-announce | X_refsource_misc | |
| https://security.netapp.com/advisory/ntap-20220121-0005 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://docs.djangoproject.com/en/4.0/releases/security | 2023-11-07 | |
| https://www.djangoproject.com/weblog/2022/jan/04/security-releases | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Djangoproject Search vendor "Djangoproject" | Django Search vendor "Djangoproject" for product "Django" | >= 2.2 < 2.2.26 Search vendor "Djangoproject" for product "Django" and version " >= 2.2 < 2.2.26" | - |
Affected
| ||||||
| Djangoproject Search vendor "Djangoproject" | Django Search vendor "Djangoproject" for product "Django" | >= 3.2 < 3.2.11 Search vendor "Djangoproject" for product "Django" and version " >= 3.2 < 3.2.11" | - |
Affected
| ||||||
| Djangoproject Search vendor "Djangoproject" | Django Search vendor "Djangoproject" for product "Django" | >= 4.0 < 4.0.1 Search vendor "Djangoproject" for product "Django" and version " >= 4.0 < 4.0.1" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
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