CVE-2021-31542

django: Potential directory-traversal via uploaded files

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Django 2.2 before 2.2.21, 3.1 before 3.1.9, and 3.2 before 3.2.1, MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names.

En Django versiones 2.2 anteriores a 2.2.21, versiones 3.1 anteriores a 3.1.9 y versiones 3.2 anteriores a 3.2.1, MultiPartParser, UploadedFile y FieldFile, permitían un salto de directorio por medio de archivos cargados con nombres de archivo cuidadosamente diseñados

A flaw was found in Django. `MultiPartParser`, `UploadedFile`, and `FieldFile` allowed directory-traversal via uploaded files with suitably crafted file names. The highest threat from this vulnerability is to data confidentiality.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-22 CVE Reserved
2021-05-04 CVE Published
2024-01-19 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (13)

URL	Tag	Source
https://github.com/django/django/commit/04ac1624bdc2fa737188401757cf95ced122d26d
https://github.com/django/django/commit/25d84d64122c15050a0ee739e859f22ddab5ac48
https://github.com/django/django/commit/c98f446c188596d4ba6de71d1b77b4a6c5c2a007
https://groups.google.com/forum/#%21forum/django-announce
https://lists.debian.org/debian-lts-announce/2021/05/msg00005.html	Mailing List
https://security.netapp.com/advisory/ntap-20210618-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2021/05/04/3	2023-12-07
https://docs.djangoproject.com/en/3.2/releases/security	2023-12-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV	2023-12-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE	2023-12-07
https://www.djangoproject.com/weblog/2021/may/04/security-releases	2023-12-07
https://access.redhat.com/security/cve/CVE-2021-31542	2021-12-09
https://bugzilla.redhat.com/show_bug.cgi?id=1954294	2021-12-09

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 < 2.2.21 Search vendor "Djangoproject" for product "Django" and version " >= 2.2 < 2.2.21"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				>= 3.1 < 3.1.9 Search vendor "Djangoproject" for product "Django" and version " >= 3.1 < 3.1.9"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				>= 3.2 < 3.2.1 Search vendor "Djangoproject" for product "Django" and version " >= 3.2 < 3.2.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected