Mattermost up to 8.1.12/9.5.3/9.6.1/9.7.1 Email Signup Configuration Options access control

Summaryinfo

A vulnerability was found in Mattermost up to 8.1.12/9.5.3/9.6.1/9.7.1. It has been classified as critical. This vulnerability affects unknown code of the component Email Signup Configuration Options Handler. Performing a manipulation results in access control. This vulnerability was named CVE-2024-5270. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mattermost up to 8.1.12/9.5.3/9.6.1/9.7.1. This affects an unknown code block of the component Email Signup Configuration Options Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity. The summary by CVE is:

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.

The weakness was presented by Grzegorz Misiun. The advisory is shared at mattermost.com. This vulnerability is uniquely identified as CVE-2024-5270 since 05/23/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 8.1.13, 9.5.4, 9.6.2, 9.7.2 or 9.8.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5
• 8.1.6
• 8.1.7
• 8.1.8
• 8.1.9
• 8.1.10
• 8.1.11
• 8.1.12
• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.6.0
• 9.6.1
• 9.7.0
• 9.7.1

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion