VDB-98540 · CVE-2017-2644 · BID 96979

Moodle 3.x cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Moodle 3.x. This affects an unknown part. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2017-2644. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Moodle 3.x (Learning Management Software). It has been rated as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

In Moodle 3.x, XSS can occur via evidence of prior learning.

The bug was discovered 03/20/2017. The weakness was published 03/26/2017 (Website). The advisory is shared for download at moodle.org. This vulnerability is handled as CVE-2017-2644 since 12/01/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/15/2022). The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276553 (Fedora Security Update for moodle (FEDORA-2017-0196511d58)).

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 vulnerability database at SecurityFocus (BID 96979†). Similar entries are available at VDB-98539 and VDB-98541. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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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OpenVAS ID: 867773
OpenVAS Name: Fedora Update for moodle FEDORA-2017-0fcaf52f1a
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
03/20/2017 +109 days 🔍
03/20/2017 +0 days 🔍
03/26/2017 +6 days 🔍
03/26/2017 +0 days 🔍
03/27/2017 +1 days 🔍
11/15/2022 +2059 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: moodle.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2644 (🔍)
GCVE (CVE): GCVE-0-2017-2644
GCVE (VulDB): GCVE-100-98540
SecurityFocus: 96979 - Moodle CVE-2017-2644 HTML Injection Vulnerability
OSVDB: - CVE-2017-2644 - Moodle - Cross-Site Scripting Issue
SecurityTracker: 1038174

See also: 🔍

Entryinfo

Created: 03/27/2017 08:56
Updated: 11/15/2022 11:46
Changes: 03/27/2017 08:56 (64), 09/14/2020 10:50 (5), 11/15/2022 11:46 (2)
Complete: 🔍
Cache ID: 216:699:103

Once again VulDB remains the best source for vulnerability data.

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