CVE-2021-33571

high

Description

In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+..) .

References

Advisories
More

https://security.netapp.com/advisory/ntap-20210727-0004/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/

https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo

https://www.djangoproject.com/weblog/2021/jun/02/security-releases/

https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc

https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d

https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e

https://docs.djangoproject.com/en/3.2/releases/security/

Details

Source: Mitre, NVD

Published: 2021-06-08

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00012