Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2 ZIP data amplification

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component ZIP Handler. Performing a manipulation results in data amplification. This vulnerability is cataloged as CVE-2024-54682. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mattermost up to 9.5.12/9.11.4/10.0.2/10.1.2. It has been classified as critical. This affects an unknown function of the component ZIP Handler. The manipulation with an unknown input leads to a data amplification vulnerability. CWE is classifying the issue as CWE-409. The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. This is going to have an impact on availability. The summary by CVE is:

Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, 9.5.x <= 9.5.12 fail to limit the file size for slack import file uploads which allows a user to cause a DoS via zip bomb by importing data in a team they are a team admin.

The weakness was shared by Vultza. It is possible to read the advisory at mattermost.com. This vulnerability is uniquely identified as CVE-2024-54682 since 12/11/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 213276 (Mattermost Server 9.5.x < 9.5.13, 9.11.x < 9.11.5, 10.0.x < 10.0.3, 10.1.x < 10.1.3, 10.2.0 (MMSA-2024-00388, MMSA-2024-00392)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.5.13, 9.11.5, 10.0.3, 10.1.3 or 10.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (213276). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Mattermost): 🔍

CVSSv2info

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

Exploitinginfo

Class: Data amplification
CWE: CWE-409 / 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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Nessus ID: 213276
Nessus Name: Mattermost Server 9.5.x < 9.5.13, 9.11.x < 9.11.5, 10.0.x < 10.0.3, 10.1.x < 10.1.3, 10.2.0 (MMSA-2024-00388, MMSA-2024-00392)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 9.5.13/9.11.5/10.0.3/10.1.3/10.2.0

Timelineinfo

12/11/2024 🔍
12/16/2024 +5 days 🔍
12/16/2024 +0 days 🔍
09/30/2025 +288 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Vultza
Status: Confirmed

CVE: CVE-2024-54682 (🔍)
GCVE (CVE): GCVE-0-2024-54682
GCVE (VulDB): GCVE-100-288519

Entryinfo

Created: 12/16/2024 09:25
Updated: 09/30/2025 18:23
Changes: 12/16/2024 09:25 (64), 12/20/2024 15:00 (2), 09/30/2025 18:23 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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