Privilege escalation by backend users assigned to the default "Publisher" system role

Impact

Backend users with the default “Publisher” system role have access to create & manage users where they can choose which role the new user has. This means that a user with “Publisher” access has the ability to escalate their access to “Developer” access.

Patches

Issue has been patched in Build 470 (v1.0.470) & v1.1.1.

Workarounds

Apply https://github.com/octobercms/october/commit/78a37298a4ed4602b383522344a31e311402d829 to your installation manually if unable to upgrade to Build 470 or v1.1.1.

References

Reported by Hoan Hoang

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected]

Threat assessment:

<img width=“1098” alt=“Screen Shot 2020-10-10 at 1 37 25 PM” src=“https://user-images.githubusercontent.com/7253840/95663611-e6326c80-0afd-11eb-8a1e-8b767a7202fb.png”>