Mattermost up to 9.6.0 Post Action access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mattermost up to 8.1.10/9.3.2/9.4.3/9.5.1/9.6.0. Affected is an unknown function of the component Post Action Handler. This manipulation causes access control. The identification of this vulnerability is CVE-2024-2447. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Mattermost up to 8.1.10/9.3.2/9.4.3/9.5.1/9.6.0. Affected by this vulnerability is some unknown processing of the component Post Action Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity. The summary by CVE is:

Mattermost versions 8.1.x before 8.1.11, 9.3.x before 9.3.3, 9.4.x before 9.4.4, and 9.5.x before 9.5.2 fail to authenticate the source of certain types of post actions, allowing an authenticated attacker to create posts as other users via a crafted post action.

The weakness was shared by Juho Nurminen. The advisory is shared at mattermost.com. This vulnerability is known as CVE-2024-2447 since 03/14/2024. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 8.1.11, 9.3.3, 9.4.4, 9.5.2 or 9.6.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Mattermost, Inc.): 🔍

CVSSv2info

AVACAuCIA
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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: 🔍

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 8.1.11/9.3.3/9.4.4/9.5.2/9.6.0

Timelineinfo

03/14/2024 🔍
04/05/2024 +21 days 🔍
04/05/2024 +0 days 🔍
12/13/2024 +252 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Juho Nurminen
Status: Confirmed

CVE: CVE-2024-2447 (🔍)
GCVE (CVE): GCVE-0-2024-2447
GCVE (VulDB): GCVE-100-259489

Entryinfo

Created: 04/05/2024 11:55
Updated: 12/13/2024 17:42
Changes: 04/05/2024 11:55 (64), 12/13/2024 17:42 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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