Mattermost Server up to 7.8.6/7.9.4/7.10.2 Markdown resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Mattermost Server up to 7.8.6/7.9.4/7.10.2 and classified as problematic. Impacted is an unknown function of the component Markdown Handler. The manipulation results in resource consumption. This vulnerability is cataloged as CVE-2023-3593. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mattermost Server up to 7.8.6/7.9.4/7.10.2. It has been classified as problematic. Affected is an unknown code of the component Markdown Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

Mattermost fails to properly validate markdown, allowing an attacker to crash the server via a specially crafted markdown input.

The weakness was shared 07/17/2023. The advisory is available at mattermost.com. This vulnerability is traded as CVE-2023-3593 since 07/10/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 7.8.7, 7.9.5 or 7.10.3 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

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

NVD Base Score: 6.5
NVD Vector: 🔍

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

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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: Server 7.8.7/7.9.5/7.10.3

Timelineinfo

07/10/2023 🔍
07/17/2023 +7 days 🔍
07/17/2023 +0 days 🔍
08/06/2023 +20 days 🔍

Sourcesinfo

Advisory: mattermost.com
Status: Confirmed

CVE: CVE-2023-3593 (🔍)
GCVE (CVE): GCVE-0-2023-3593
GCVE (VulDB): GCVE-100-234294

Entryinfo

Created: 07/17/2023 19:14
Updated: 08/06/2023 15:35
Changes: 07/17/2023 19:14 (50), 08/06/2023 15:35 (11)
Complete: 🔍
Cache ID: 216::103

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