Moodle 3.x Calendar event name cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Moodle 3.x. This vulnerability affects unknown code of the component Calendar. This manipulation of the argument event name causes cross site scripting. This vulnerability is handled as CVE-2018-1045. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Moodle 3.x (Learning Management Software). It has been declared as problematic. Affected by this vulnerability is an unknown code of the component Calendar. The manipulation of the argument event name with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

In Moodle 3.x, there is XSS via a calendar event name.

The weakness was released 01/22/2018 (Website). It is possible to read the advisory at moodle.org. This vulnerability is known as CVE-2018-1045 since 12/04/2017. The attack can be launched remotely. A single authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 106542 (Fedora 27 : moodle (2018-c587c0a62d)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277111 (Fedora Security Update for moodle (FEDORA-2018-7e086e3309)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106542) and SecurityFocus (BID 102755†). Entries connected to this vulnerability are available at VDB-112288, VDB-112289 and VDB-112290. Statistical analysis made it clear that VulDB provides the best quality 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: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
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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Nessus ID: 106542
Nessus Name: Fedora 27 : moodle (2018-c587c0a62d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61363
OpenVAS Name: Fedora Update for moodle FEDORA-2018-c587c0a62d
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/04/2017 🔍
01/22/2018 +49 days 🔍
01/22/2018 +0 days 🔍
01/22/2018 +0 days 🔍
01/23/2018 +1 days 🔍
01/31/2018 +8 days 🔍
02/01/2018 +1 days 🔍
02/02/2023 +1827 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: FEDORA-2018-c587c0a62d
Researcher: Rubens Brandao
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1045 (🔍)
GCVE (CVE): GCVE-0-2018-1045
GCVE (VulDB): GCVE-100-112291
SecurityFocus: 102755 - Moodle CVE-2018-1045 Cross Site Scripting Vulnerability

See also: 🔍

Entryinfo

Created: 01/23/2018 08:01
Updated: 02/02/2023 12:01
Changes: 01/23/2018 08:01 (74), 12/26/2019 15:55 (5), 02/01/2021 13:55 (2), 02/02/2023 12:01 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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