Moodle 2.5/2.5.1 userid code injection

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Moodle 2.5/2.5.1. The affected element is an unknown function. Such manipulation of the argument userid leads to code injection. This vulnerability is listed as CVE-2013-5674. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Moodle 2.5/2.5.1 (Learning Management Software). Affected by this issue is an unknown part. The manipulation of the argument userid with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

badges/external.php in Moodle 2.5.x before 2.5.2 does not properly handle an object obtained by unserializing a description of an external badge, which allows remote attackers to conduct PHP object injection attacks via unspecified vectors, as demonstrated by overwriting the value of the userid parameter.

The weakness was presented 09/16/2013 by Emilio Pinna (Website). The advisory is shared for download at moodle.org. This vulnerability is handled as CVE-2013-5674 since 09/02/2013. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

The vulnerability scanner Nessus provides a plugin with the ID 70023 (Moodle 'external.php' 'badge' Parameter XSS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses : XSS. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12767 (Moodle badges/external.php Cross-Site Scripting Vulnerability).

Upgrading to version 2.5.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (87148), Tenable (70023), SecurityFocus (BID 62412†) and Vulnerability Center (SBV-41568†). See VDB-64927 and VDB-64926 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70023
Nessus Name: Moodle 'external.php' 'badge' Parameter XSS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Moodle 2.5.1

Timelineinfo

09/02/2013 🔍
09/16/2013 +14 days 🔍
09/16/2013 +0 days 🔍
09/16/2013 +0 days 🔍
09/16/2013 +0 days 🔍
09/20/2013 +4 days 🔍
09/22/2013 +2 days 🔍
03/24/2015 +548 days 🔍
12/24/2024 +3563 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: moodle.org
Researcher: Emilio Pinna
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-5674 (🔍)
GCVE (CVE): GCVE-0-2013-5674
GCVE (VulDB): GCVE-100-64928
X-Force: 87148
SecurityFocus: 62412 - Moodle 'external.php' CVE-2013-5674 PHP Object Injection Vulnerability
Vulnerability Center: 41568 - Moodle 2.5.* Before 2.5.2 \x27external.php\x27 Allows Remote PHP Injection Attacks, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 12/24/2024 12:13
Changes: 03/24/2015 15:54 (62), 05/11/2017 08:59 (5), 01/07/2022 13:57 (3), 12/24/2024 12:13 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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