Mattermost up to 7.8.14/8.1.5/9.0.3/9.1.2/9.2.1 Task access control

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 (≈)
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CTI Interest Score
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4.2$0-$5k0.00

A vulnerability was found in Mattermost up to 7.8.14/8.1.5/9.0.3/9.1.2/9.2.1. It has been rated as critical. This issue affects an unknown code of the component Task Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is integrity. The summary by CVE is:

Mattermost fails to check whether a user is a guest when updating the tasks of a private playbook run allowing a guest to update the tasks of a private playbook run if they know the run ID.

The weakness was disclosed 12/12/2023 by Doyensec. The advisory is shared at mattermost.com. The identification of this vulnerability is CVE-2023-49874 since 12/05/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 7.8.15, 8.1.6, 9.0.4, 9.1.3 or 9.2.2 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (Mattermost, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 7.8.15/8.1.6/9.0.4/9.1.3/9.2.2

Timelineinfo

12/05/2023 🔍
12/12/2023 +7 days 🔍
12/12/2023 +0 days 🔍
01/02/2024 +21 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Doyensec
Status: Confirmed

CVE: CVE-2023-49874 (🔍)

Entryinfo

Created: 12/12/2023 09:43 AM
Updated: 01/02/2024 09:52 AM
Changes: 12/12/2023 09:43 AM (49), 01/02/2024 09:52 AM (1)
Complete: 🔍
Cache ID: 18:F96:40

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