Debian DSA-2991-1 : modsecurity-apache - security update

medium Nessus Plugin ID 76858

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Synopsis

The remote Debian host is missing a security-related update.

Description

Martin Holst Swende discovered a flaw in the way chunked requests are handled in ModSecurity, an Apache module whose purpose is to tighten the Web application security. A remote attacker could use this flaw to bypass intended mod_security restrictions by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header, allowing to send requests containing content that should have been removed by mod_security.

Solution

Upgrade the modsecurity-apache packages.

For the stable distribution (wheezy), this problem has been fixed in version 2.6.6-6+deb7u2.

Plugin Details

Severity: Medium

ID: 76858

File Name: debian_DSA-2991.nasl

Version: 1.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/28/2014

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:modsecurity-apache, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/27/2014

Reference Information

CVE: CVE-2013-5705

BID: 66552

DSA: 2991

Detections

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