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CVE-2024-1402— Denial of service in mattermost mobile apps and server via emoji reactions

Quick assessment

Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 存在资源管理错误漏洞，该漏洞源于在将其发送到帖子时无法检查是否存在自定义表情符号，也无法限制允许在帖子中添加的自定义表情符号数量，从而导致攻击者在帖子中发送大量不存在的自定义表情符号而导致崩溃。

CVSS 4.3 · Medium EPSS 0.52% · P43
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I. Basic Information for CVE-2024-1402

Vulnerability Information
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Vulnerability Title
Denial of service in mattermost mobile apps and server via emoji reactions
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. 
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 存在资源管理错误漏洞，该漏洞源于在将其发送到帖子时无法检查是否存在自定义表情符号，也无法限制允许在帖子中添加的自定义表情符号数量，从而导致攻击者在帖子中发送大量不存在的自定义表情符号而导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mattermost Mattermost 0 ~ 8.1.7 -

II. Public POCs for CVE-2024-1402

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III. Intelligence Information for CVE-2024-1402

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Same Patch Batch · Mattermost · 2024-02-09 · 4 CVEs total

CVE-2024-23319 3.5 LOW CSRF issue allows disconnecting a user's Jira connection through a simple post message (Ji
CVE-2024-24774 3.4 LOW Missing authorization allows users to access arbitrary security levels on Jira through web
CVE-2024-24776 3.1 LOW Incorrect Authorization leads to Channel Member Count Leak

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-400

V. Comments for CVE-2024-1402

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