Moodle up to 2.1.1 Filesystem lib.php path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Moodle up to 2.1.1. It has been rated as problematic. Affected by this issue is some unknown functionality in the library repository/filesystem/lib.php of the component Filesystem. Performing a manipulation results in path traversal. This vulnerability was named CVE-2013-4524. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as critical has been found in Moodle up to 2.1.1 (Learning Management Software). This affects an unknown function in the library repository/filesystem/lib.php of the component Filesystem. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

Directory traversal vulnerability in repository/filesystem/lib.php in Moodle through 2.2.11, 2.3.x before 2.3.10, 2.4.x before 2.4.7, and 2.5.x before 2.5.3 allows remote authenticated users to read arbitrary files via a .. (dot dot) in a path.

The weakness was presented 11/26/2013 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.moodle.org. This vulnerability is uniquely identified as CVE-2013-4524 since 06/12/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

By approaching the search of inurl:repository/filesystem/lib.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12837 (Moodle Information Disclosure and Cross-Site Scripting Vulnerabilities).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.moodle.org.

The vulnerability is also documented in the databases at X-Force (89232), SecurityFocus (BID 63885†) and Vulnerability Center (SBV-47615†). See VDB-11604, VDB-11605, VDB-11606 and VDB-11607 for similar entries. Be aware that VulDB is the high quality 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: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.moodle.org

Timelineinfo

06/12/2013 🔍
11/25/2013 +166 days 🔍
11/25/2013 +0 days 🔍
11/26/2013 +1 days 🔍
11/26/2013 +0 days 🔍
12/15/2014 +384 days 🔍
03/24/2015 +99 days 🔍
06/15/2017 +814 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: git.moodle.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-4524 (🔍)
GCVE (CVE): GCVE-0-2013-4524
GCVE (VulDB): GCVE-100-65583
X-Force: 89232
SecurityFocus: 63885 - Moodle CVE-2013-4524 File System Unauthorized Access Vulnerability
Vulnerability Center: 47615 - Moodle \x27repository/filesystem/lib.php\x27 Remote Directory Traversal Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 06/15/2017 11:28
Changes: 03/24/2015 15:54 (61), 06/15/2017 11:28 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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