Apache Subversion up to 1.7.8 mod_dav_svn null pointer dereference

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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apache Subversion. This impacts an unknown function of the component mod_dav_svn. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2013-1847. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apache Subversion (Versioning Software). This issue affects some unknown functionality of the component mod_dav_svn. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

The mod_dav_svn Apache HTTPD server module in Subversion 1.6.0 through 1.6.20 and 1.7.0 through 1.7.8 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an anonymous LOCK for a URL that does not exist.

The weakness was presented 05/02/2013 as Bug 929090 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2013-1847 since 02/19/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 69739 (Amazon Linux AMI : subversion (ALAS-2013-180)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121468 (Apache Subversion "mod_dav_svn" Multiple Denial of Service Vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (83261), Exploit-DB (38421), Tenable (69739), SecurityFocus (BID 58897†) and Vulnerability Center (SBV-39275†). See VDB-64075, VDB-64074, VDB-64072 and VDB-64071 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 69739
Nessus Name: Amazon Linux AMI : subversion (ALAS-2013-180)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802055
OpenVAS Name: Apache Subversion mod_dav_svn Module Multiple DoS Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/19/2013 🔍
04/05/2013 +45 days 🔍
04/05/2013 +0 days 🔍
04/21/2013 +16 days 🔍
05/02/2013 +11 days 🔍
05/02/2013 +0 days 🔍
03/24/2015 +691 days 🔍
11/16/2024 +3525 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: Bug 929090
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1847 (🔍)
GCVE (CVE): GCVE-0-2013-1847
GCVE (VulDB): GCVE-100-64073

OVAL: 🔍

X-Force: 83261
SecurityFocus: 58897 - Apache Subversion 'mod_dav_svn/lock.c' Remote Denial of Service Vulnerability
Vulnerability Center: 39275 - Subversion \x27mod_dav_svn\x27 Module Remote DoS Vulnerability - CVE-2013-1847, Medium

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

Entryinfo

Created: 03/24/2015 15:54
Updated: 11/16/2024 16:36
Changes: 03/24/2015 15:54 (68), 04/28/2017 08:49 (5), 01/02/2022 14:20 (3), 11/16/2024 16:36 (23)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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