Moodle up to 2.1.1 Proxy Server lib/filelib.php information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Moodle up to 2.1.1. It has been classified as problematic. Affected is an unknown function in the library lib/filelib.php of the component Proxy Server. This manipulation causes information disclosure. This vulnerability is handled as CVE-2013-4522. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Moodle up to 2.1.1 (Learning Management Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block in the library lib/filelib.php of the component Proxy Server. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

lib/filelib.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 does not send "Cache-Control: private" HTTP headers, which allows remote attackers to obtain sensitive information by requesting a file that had been previously retrieved by a caching proxy server.

The weakness was released 11/26/2013 as confirmed git commit (GIT Repository). The advisory is shared at git.moodle.org. This vulnerability is known as CVE-2013-4522 since 06/12/2013. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

By approaching the search of inurl:lib/filelib.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 (89243), SecurityFocus (BID 63882†) and Vulnerability Center (SBV-47614†). Entries connected to this vulnerability are available at VDB-11604, VDB-11605, VDB-11606 and VDB-11607. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

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-2013-4522 (🔍)
GCVE (CVE): GCVE-0-2013-4522
GCVE (VulDB): GCVE-100-65581
X-Force: 89243
SecurityFocus: 63882 - Moodle CVE-2013-4522 Information Disclosure Vulnerability
Vulnerability Center: 47614 - Moodle \x27lib/filelib.php\x27 Remote Information Disclosure 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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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