Debian DSA-2659-1 : libapache-mod-security - XML external entity processing vulnerability

high Nessus Plugin ID 65921

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Synopsis

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

Description

Timur Yunusov and Alexey Osipov from Positive Technologies discovered that the XML files parser of ModSecurity, an Apache module whose purpose is to tighten the Web application security, is vulnerable to XML external entities attacks. A specially crafted XML file provided by a remote attacker, could lead to local file disclosure or excessive resources (CPU, memory) consumption when processed.

This update introduces a SecXmlExternalEntity option which is 'Off'by default. This will disable the ability of libxml2 to load external entities.

Solution

Upgrade the libapache-mod-security packages.

For the stable distribution (squeeze), this problem has been fixed in version 2.5.12-1+squeeze2.

Plugin Details

Severity: High

ID: 65921

File Name: debian_DSA-2659.nasl

Version: 1.11

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/11/2013

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libapache-mod-security, cpe:/o:debian:debian_linux:6.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/9/2013

Reference Information

CVE: CVE-2013-1915

BID: 58810

DSA: 2659

Detections

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