CVE-2021-32052 : In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibi

In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLField form field is used). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers.

Published 2021-05-06 16:15:08

Updated 2022-01-01 18:06:18

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-32052

Fedoraproject » Fedora » Version: 34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Matching versions
Djangoproject » Django
Versions from including (>=) 3.1 and before (<) 3.1.10
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
Matching versions
When used together with: Python » Python
Djangoproject » Django
Versions from including (>=) 3.2 and before (<) 3.2.2
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
Matching versions
When used together with: Python » Python
Djangoproject » Django
Versions from including (>=) 2.2 and before (<) 2.2.22
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
Matching versions
When used together with: Python » Python

Exploit prediction scoring system (EPSS) score for CVE-2021-32052

EPSS FAQ

0.17%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 53 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-32052

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2021-32052

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-32052

http://www.openwall.com/lists/oss-security/2021/05/06/1

oss-security - Django: CVE-2021-32052: Header injection possibility since URLValidator accepted newlines in input on Python 3.9.5+
Mailing List;Patch;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/

[SECURITY] Fedora 34 Update: python-django-3.1.9-1.fc34 - package-announce - Fedora Mailing-Lists
Third Party Advisory

CVEs referencing this url
https://docs.djangoproject.com/en/3.2/releases/security/

Archive of security issues | Django documentation | Django
Patch;Vendor Advisory

CVEs referencing this url
https://security.netapp.com/advisory/ntap-20210611-0002/

CVE-2021-32052 Django Vulnerability in NetApp Products | NetApp Product Security
Third Party Advisory
https://www.djangoproject.com/weblog/2021/may/06/security-releases/

Django security releases issued: 3.2.2, 3.1.10, and 2.2.22 | Weblog | Django
Patch;Vendor Advisory
https://groups.google.com/forum/#!forum/django-announce

django-announce - Google Groups
Mailing List;Third Party Advisory

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2021-32052

Products affected by CVE-2021-32052

Exploit prediction scoring system (EPSS) score for CVE-2021-32052

CVSS scores for CVE-2021-32052

CWE ids for CVE-2021-32052

References for CVE-2021-32052