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CVE-2023-5967— Denial of Service via crashing the Calls Plugin

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存在安全漏洞，该漏洞源于没有正确验证Calls插件的请求，导致攻击者可以在发送没有User Agent标头的请求时使Calls插件崩溃。

CVSS 4.3 · Medium EPSS 0.51% · P42

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-5967

Vulnerability Information
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Vulnerability Title
Denial of Service via crashing the Calls Plugin
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin
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
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost 代码问题漏洞
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存在安全漏洞，该漏洞源于没有正确验证Calls插件的请求，导致攻击者可以在发送没有User Agent标头的请求时使Calls插件崩溃。
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 ~ 8.1.2 -

II. Public POCs for CVE-2023-5967

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III. Intelligence Information for CVE-2023-5967

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Same Patch Batch · Mattermost · 2023-11-06 · 3 CVEs total

CVE-2023-5969 5.3 MEDIUM Denial of Service via Link Preview in /api/v4/redirect_location
CVE-2023-5968 4.9 MEDIUM Password hash in response body after username update

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-754

V. Comments for CVE-2023-5967

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