Apache Subversion up to 1.6.21 svn-keyword-check.pl svnlook changed input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apache Subversion. Affected by this vulnerability is the function svnlook changed of the file contrib/hook-scripts/svn-keyword-check.pl. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2013-2088. Moreover, an exploit is present. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Apache Subversion (Versioning Software) and classified as critical. This vulnerability affects the function svnlook changed of the file contrib/hook-scripts/svn-keyword-check.pl. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

contrib/hook-scripts/svn-keyword-check.pl in Subversion before 1.6.23 allows remote authenticated users with commit permissions to execute arbitrary commands via shell metacharacters in a filename.

The weakness was disclosed 05/31/2013 by Daniel Shahaf with elego Software Solutions GmbH as confirmed advisory (Website). The advisory is shared for download at subversion.apache.org. This vulnerability was named CVE-2013-2088 since 02/19/2013. The exploitation appears to be difficult. The attack can be initiated remotely. The successful exploitation requires a single authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 71566 (Apache Subversion 1.6.x / 1.7.x / 1.8.x < 1.6.23 / 1.7.11 / 1.8.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121469 (Apache Subversion Multiple Security Vulnerabilities).

Upgrading to version 1.6.23, 1.7.11 or 1.8.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at mail-archives.apache.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40507), Tenable (71566), SecurityFocus (BID 60265†), OSVDB (93793†) and Secunia (SA53727†). The entries VDB-8933, VDB-8934 and VDB-8935 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.9
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71566
Nessus Name: Apache Subversion 1.6.x / 1.7.x / 1.8.x < 1.6.23 / 1.7.11 / 1.8.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 866461
OpenVAS Name: Fedora Update for subversion FEDORA-2013-13672
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Upgrade: Subversion 1.6.23/1.7.11/1.8.0
Patch: mail-archives.apache.org

Timelineinfo

02/19/2013 🔍
05/31/2013 +101 days 🔍
05/31/2013 +0 days 🔍
06/03/2013 +3 days 🔍
06/03/2013 +0 days 🔍
06/04/2013 +1 days 🔍
07/31/2013 +57 days 🔍
12/20/2013 +142 days 🔍
12/08/2024 +4006 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: subversion.apache.org
Researcher: Daniel Shahaf
Organization: elego Software Solutions GmbH
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-2088 (🔍)
GCVE (CVE): GCVE-0-2013-2088
GCVE (VulDB): GCVE-100-8932

OVAL: 🔍

SecurityFocus: 60265 - Apache Subversion CVE-2013-2088 Command Injection Vulnerability
Secunia: 53727 - Apache Subversion Hook Scripts Arbitrary Command Injection Vulnerability, Moderately Critical
OSVDB: 93793

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

Entryinfo

Created: 06/04/2013 11:33
Updated: 12/08/2024 10:42
Changes: 06/04/2013 11:33 (81), 04/28/2019 21:44 (5), 12/08/2024 10:42 (16)
Complete: 🔍
Committer:
Cache ID: 216:B90:103

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