Debian dla-3401 : apache2 - security update

critical Nessus Plugin ID 174709

Language:

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-3401 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-3401-1 [email protected] https://www.debian.org/lts/security/ Bastien Roucaris April 24, 2023 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : apache2 Version : 2.4.38-3+deb10u10 CVE ID : CVE-2023-25690 CVE-2023-27522 Debian Bug : 1032476

Several vulnerabilities have been discovered in apache2, a webserver that may be used as front-end proxy for other applications.
These vulnerabilities may lead to HTTP request smuggling, and thus to front-end security controls being bypassed.

Unfortunately, fixing these security vulnerabilities may require changes to configuration files. Some out-of-specification RewriteRule directives that were previously silently accepted, are now rejected with error AH10409. For instance, some RewriteRules that included a back-reference and the flags [L,NC] will need to be written with extra escaping flags such as [B= ?,BNP,QSA].

CVE-2023-25690

Some mod_proxy configurations allow an HTTP request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution.

CVE-2023-27522

HTTP Response Smuggling in mod_proxy_uwsgi

For Debian 10 buster, these problems have been fixed in version 2.4.38-3+deb10u10.

We recommend that you upgrade your apache2 packages.

For the detailed security status of apache2 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/apache2

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 apache2 packages.

Plugin Details

Severity: Critical

ID: 174709

File Name: debian_DLA-3401.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/25/2023

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2023-25690

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:apache2-data, p-cpe:/a:debian:debian_linux:apache2-suexec-custom, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:apache2-utils, p-cpe:/a:debian:debian_linux:libapache2-mod-md, p-cpe:/a:debian:debian_linux:apache2-suexec-pristine, p-cpe:/a:debian:debian_linux:apache2-bin, p-cpe:/a:debian:debian_linux:libapache2-mod-proxy-uwsgi, p-cpe:/a:debian:debian_linux:apache2-doc, p-cpe:/a:debian:debian_linux:apache2-dev, p-cpe:/a:debian:debian_linux:apache2-ssl-dev, p-cpe:/a:debian:debian_linux:apache2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/24/2023

Vulnerability Publication Date: 3/7/2023

Reference Information

CVE: CVE-2023-25690, CVE-2023-27522

IAVA: 2023-A-0124-S

Detections

Analytics