Moodle Grade Report History information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
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
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Moodle and classified as problematic. The impacted element is an unknown function of the component Grade Report History. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2023-28336. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Moodle (Learning Management Software) (the affected version is unknown) and classified as problematic. This vulnerability affects an unknown code of the component Grade Report History. 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. CVE summarizes:

Insufficient filtering of grade report history made it possible for teachers to access the names of users they could not otherwise access.

The weakness was published 03/24/2023. The advisory is shared for download at moodle.org. This vulnerability was named CVE-2023-28336 since 03/14/2023. 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 04/14/2023). The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/14/2023 🔍
03/24/2023 +10 days 🔍
03/24/2023 +0 days 🔍
04/14/2023 +20 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: FEDORA-2023-d9c13996b2
Status: Confirmed

CVE: CVE-2023-28336 (🔍)
GCVE (CVE): GCVE-0-2023-28336
GCVE (VulDB): GCVE-100-223780

Entryinfo

Created: 03/24/2023 07:37
Updated: 04/14/2023 01:36
Changes: 03/24/2023 07:37 (37), 04/14/2023 01:29 (1), 04/14/2023 01:36 (11)
Complete: 🔍
Cache ID: 216::103

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