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CVE-2024-5270— SAML to email switch possible when email signin is disabled

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，该漏洞源于无法检查电子邮件注册配置选项是否已启用，允许用户编辑由SAML提供商提供的不可编辑的个人详细信息。

CVSS 4.3 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation
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I. Basic Information for CVE-2024-5270

Vulnerability Information
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Vulnerability Title
SAML to email switch possible when email signin is disabled
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to check if the email signup configuration option is enabled when a user requests to switch from SAML to Email. This allows the user to switch their authentication mail from SAML to email and possibly edit personal details that were otherwise non-editable and provided by the SAML provider.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
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，该漏洞源于无法检查电子邮件注册配置选项是否已启用，允许用户编辑由SAML提供商提供的不可编辑的个人详细信息。
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 9.5.0 ~ 9.5.3 -

II. Public POCs for CVE-2024-5270

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III. Intelligence Information for CVE-2024-5270

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Same Patch Batch · Mattermost · 2024-05-26 · 9 CVEs total

CVE-2024-32045 5.9 MEDIUM Playbook run link to private channel grants channel access
CVE-2024-36255 5.7 MEDIUM Post actions can run playbook checklist task commands
CVE-2024-29215 4.3 MEDIUM Slash commands run in channel without channel membership via playbook task commands
CVE-2024-31859 4.3 MEDIUM Member promoted to channel admin via playbooks run linking to channel
CVE-2024-5272 4.3 MEDIUM Run Details leak to guest via webhook event "custom_playbooks_playbook_run_updated"
CVE-2024-34152 4.3 MEDIUM Playbook Run Metadata leak to Guest
CVE-2024-34029 4.3 MEDIUM AD/LDAP Group Members Leak
CVE-2024-36241 3.1 LOW /playbook add slash command allows viewing arbitrary post contents

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-284

V. Comments for CVE-2024-5270

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