Executive Summary

Summary
Titleapache2 security update
Informations
NameDSA-2452First vendor Publication2012-04-15
VendorDebianLast vendor Modification2012-04-15
Severity (Vendor) N/ARevision1

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score4.4Attack RangeLocal
Cvss Impact Score6.4Attack ComplexityMedium
Cvss Expoit Score3.4AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Niels Heinen noticed a security issue with the default Apache configuration on Debian if certain scripting modules like mod_php or mod_rivet are installed. The problem arises because the directory /usr/share/doc, which is mapped to the URL /doc, may contain example scripts that can be executed by requests to this URL. Although access to the URL /doc is restricted to connections from localhost, this still creates security issues in two specific configurations:

- - If some front-end server on the same host forwards connections to an apache2 backend server on the localhost address, or

- - if the machine running apache2 is also used for web browsing.

Systems not meeting one of these two conditions are not known to be vulnerable. The actual security impact depends on which packages (and accordingly which example scripts) are installed on the system. Possible issues include cross site scripting, code execution, or leakage of sensitive data.

This updates removes the problematic configuration sections from the files /etc/apache2/sites-available/default and .../default-ssl. When upgrading, you should not blindly allow dpkg to replace those files, though. Rather you should merge the changes, namely the removal of the 'Alias /doc "/usr/share/doc"' line and the related '' block, into your versions of these config files. You may also want to check if you have copied these sections to any additional virtual host configurations.

For the stable distribution (squeeze), this problem has been fixed in version 2.2.16-6+squeeze7.

For the testing distribution (wheezy), this problem will be fixed in version 2.2.22-4.

For the unstable distribution (sid), this problem will be fixed in version 2.2.22-4.

For the experimental distribution, this problem has been fixed in version 2.4.1-3.

We recommend that you upgrade your apache2 packages and adjust your configuration.

Original Source

Url : http://www.debian.org/security/2012/dsa-2452

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:20114
 
Oval ID: oval:org.mitre.oval:def:20114
Title: DSA-2452-1 apache2 - insecure default configuration
Description: Niels Heinen noticed a security issue with the default Apache configuration on Debian if certain scripting modules like mod_php or mod_rivet are installed. The problem arises because the directory /usr/share/doc, which is mapped to the URL /doc, may contain example scripts that can be executed by requests to this URL. Although access to the URL /doc is restricted to connections from localhost, this still creates security issues in two specific configurations.
Family: unix Class: patch
Reference(s): DSA-2452-1
CVE-2012-0216
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): apache2
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application3

OpenVAS Exploits

DateDescription
2012-04-30Name : Debian Security Advisory DSA 2452-1 (apache2)
File : nvt/deb_2452_1.nasl

Nessus® Vulnerability Scanner

DateDescription
2012-04-16Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2452.nasl - Type : ACT_GATHER_INFO

Alert History

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DateInformations
2014-02-17 11:31:00
  • Multiple Updates