Apache HTTP Server on Linux apachectl Files access control

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in Apache HTTP Server on Linux (Web Server) (affected version unknown). This affects an unknown functionality of the file apachectl. The manipulation with the input value /var/lock leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

The Debian apache2ctl script in the apache2 package squeeze before 2.2.16-6+squeeze11, wheezy before 2.2.22-13, and sid before 2.2.22-13 for the Apache HTTP Server on Debian GNU/Linux does not properly create the /var/lock/apache2 lock directory, which allows local users to gain privileges via an unspecified symlink attack.

The weakness was shared 03/04/2013 by Hayawardh Vijayakumar as DSA-2637-1 as not defined advisory (Website). The advisory is shared at debian.org. This vulnerability is uniquely identified as CVE-2013-1048 since 01/11/2013. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After immediately, there has been an exploit disclosed. The exploit is shared for download at bugs.launchpad.net. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 64995 (Debian DSA-2637-1 : apache2 - several issues), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195375 (Ubuntu Security Notification for Apache2 Vulnerabilities (USN-1765-1)).

Applying the patch 2.2.16-6+squeeze11 is able to eliminate this problem. The bugfix is ready for download at httpd.apache.org.

The vulnerability is also documented in the databases at X-Force (82626) and Tenable (64995).






CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.1
VulDB Temp Score: 4.6
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Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 64995
Nessus Name: Debian DSA-2637-1 : apache2 - several issues
Nessus File: 🔍
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OpenVAS ID: 892637
OpenVAS Name: Debian Security Advisory DSA 2637-1 (apache2 - several issues
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Patch
Status: 🔍

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Patch: 2.2.16-6+squeeze11


01/11/2013 🔍
03/04/2013 +52 days 🔍
03/04/2013 +0 days 🔍
03/04/2013 +0 days 🔍
03/04/2013 +0 days 🔍
03/05/2013 +1 days 🔍
03/06/2013 +1 days 🔍
03/06/2013 +0 days 🔍
04/24/2014 +414 days 🔍
05/05/2021 +2568 days 🔍


Vendor: apache.org

Advisory: DSA-2637-1
Researcher: Hayawardh Vijayakumar
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-1048 (🔍)

X-Force: 82626
Vulnerability Center: 44233 - apache2 Package for Debian Linux File System Read and Write via a Symlink Attack, Medium
SecurityFocus: 58325 - Debian Apache HTTP Server CVE-2013-1048 Symlink Attack Local Privilege Escalation Vulnerability
Secunia: 52301 - Debian update for apache2, Less Critical
OSVDB: 90852

scip Labs: https://www.scip.ch/en/?labs.20161013


Created: 03/06/2013 11:14 AM
Updated: 05/05/2021 06:13 PM
Changes: 03/06/2013 11:14 AM (84), 05/26/2017 03:46 AM (4), 05/05/2021 06:13 PM (3)
Complete: 🔍


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