CVE-2023-4106— A guest user can perform various actions on public playbooks
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，该漏洞源于未正确检查请求用户是否为访客（guest）用户，从而允许访客用户执行对公共 Playbooks 的不同操作，包括查看、加入、编辑、导出和归档。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-4106
Vulnerability Information
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Vulnerability Title
A guest user can perform various actions on public playbooks
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost 安全漏洞
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，该漏洞源于未正确检查请求用户是否为访客（guest）用户，从而允许访客用户执行对公共 Playbooks 的不同操作，包括查看、加入、编辑、导出和归档。
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 ~ 7.8.7 | - |
|
II. Public POCs for CVE-2023-4106
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Mattermost · 2023-08-11 · 4 CVEs total
| CVE-2023-4107 | 6.7 MEDIUM | Incorrect authorization allows a user manager to update a system admin |
| CVE-2023-4108 | 4.5 MEDIUM | Audit logging fails to sanitize post metadata |
| CVE-2023-4105 | 3.1 LOW | Attachment of deleted message in a thread remains accessible and downloadable |
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V. Comments for CVE-2023-4106
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