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Improper Access Control

CVE-2024-8071

High
7.2/10

Summary

Mattermost versions 9.5.x prior to 9.5.8-rc1, 9.8.x prior to 9.8.3-rc1, 9.9.x prior to 9.9.2-rc1, and 9.10.x prior to 9.10.1-rc1 fail to restrict which roles can promote a user as system admin which allows a System Role with edit access to the permissions section of system console to update their role (e.g. member) to include the `manage_system` permission, effectively becoming a System Admin.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • HIGH
  • HIGH
  • HIGH

CWE-284 - Improper Access Control

Listed 5th in the 'OWASP Top Ten', improper (or broken) access control attacks are a fundamental type of vulnerability. This includes a broad range of design flaws that enable users to act outside of their intended permissions. They can use these privileges to gain access to restricted files and functionality such as accessing restricted information, falsifying records, destroying data, or executing commands.

References

Advisory Timeline

  • Published