Debian DLA-2676-1 : python-django security update

high Nessus Plugin ID 150303

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Synopsis

The remote Debian host is missing a security update.

Description

Two issues were discovered in Django, the Python-based web development framework :

- CVE-2021-33203: Potential directory traversal via admindocs

Staff members could use the admindocs TemplateDetailView view to check the existence of arbitrary files.
Additionally, if (and only if) the default admindocs templates have been customized by the developers to also expose the file contents, then not only the existence but also the file contents would have been exposed.

As a mitigation, path sanitation is now applied and only files within the template root directories can be loaded.

This issue has low severity, according to the Django security policy.

Thanks to Rasmus Lerchedahl Petersen and Rasmus Wriedt Larsen from the CodeQL Python team for the report.

- CVE-2021-33571: Possible indeterminate SSRF, RFI, and LFI attacks since validators accepted leading zeros in IPv4 addresses

URLValidator, validate_ipv4_address(), and validate_ipv46_address() didn't prohibit leading zeros in octal literals. If you used such values you could suffer from indeterminate SSRF, RFI, and LFI attacks.

validate_ipv4_address() and validate_ipv46_address() validators were not affected on Python 3.9.5+.

This issue has medium severity, according to the Django security policy.

For Debian 9 'Stretch', this problem has been fixed in version 1:1.10.7-2+deb9u14.

We recommend that you upgrade your python-django packages.

For the detailed security status of python-django please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-django

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 150303

File Name: debian_DLA-2676.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/7/2021

Updated: 10/14/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-33571

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:python-django-common, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:python-django, p-cpe:/a:debian:debian_linux:python-django-doc, p-cpe:/a:debian:debian_linux:python3-django

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/5/2021

Vulnerability Publication Date: 6/8/2021

Reference Information

CVE: CVE-2021-33203, CVE-2021-33571

Detections

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