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Debian dla-3346 : python-werkzeug - security update
low Nessus Plugin ID 171932
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Synopsis
The remote Debian host is missing one or more security-related updates.Description
The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3346 advisory.- ------------------------------------------------------------------------- Debian LTS Advisory DLA-3346-1 [email protected] https://www.debian.org/lts/security/ Sylvain Beucler February 27, 2023 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------
Package : python-werkzeug Version : 0.14.1+dfsg1-4+deb10u2 CVE ID : CVE-2023-23934 CVE-2023-25577 Debian Bug : 1031370
Two vulnerabilities were discovered in Werkzeug, a collection of utilities for WSGI (web) applications. An attacker may inject cookies in specific situations, and cause a denial of service (DoS).
CVE-2023-23934
Werkzeug will parse the cookie `=__Host-test=bad` as
__Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. Browsers may allow nameless cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain.
CVE-2023-25577
Werkzeug's multipart form data parser will parse an unlimited number of parts, including file parts. Parts can be a small amount of bytes, but each requires CPU time to parse and may use more memory as Python data. If a request can be made to an endpoint that accesses `request.data`, `request.form`, `request.files`, or `request.get_data(parse_form_data=False)`, it can cause unexpectedly high resource usage. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it.
For Debian 10 buster, these problems have been fixed in version 0.14.1+dfsg1-4+deb10u2.
We recommend that you upgrade your python-werkzeug packages.
For the detailed security status of python-werkzeug please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-werkzeug
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade the python-werkzeug packages.See Also
http://www.nessus.org/u?98ea39fc
https://security-tracker.debian.org/tracker/CVE-2023-23934
Plugin Details
Severity: Low
ID: 171932
File Name: debian_DLA-3346.nasl
Version: 1.1
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 2/27/2023
Updated: 1/22/2025
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: Low
Base Score: 3.3
Temporal Score: 2.4
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2023-23934
CVSS v3
Risk Factor: Low
Base Score: 3.5
Temporal Score: 3.1
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:python-werkzeug-doc, p-cpe:/a:debian:debian_linux:python-werkzeug, p-cpe:/a:debian:debian_linux:python3-werkzeug
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 2/27/2023
Vulnerability Publication Date: 2/14/2023
Reference Information
CVE: CVE-2023-23934, CVE-2023-25577