Local File read vulnerability in OctoberCMS

Impact

An attacker can exploit this vulnerability to read local files of an October CMS server. The vulnerability is only exploitable by an authenticated backend user with the cms.manage_assets permission.

Patches

Issue has been patched in Build 466 (v1.0.466).

Workarounds

Apply https://github.com/octobercms/october/commit/2b8939cc8b5b6fe81e093fe2c9f883ada4e3c8cc to your installation manually if unable to upgrade to Build 466.

References

Reported by Sivanesh Ashok

For more information

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Threat assessment:

<img width=“1108” alt=“Screen Shot 2020-03-31 at 2 37 53 PM” src=“https://user-images.githubusercontent.com/7253840/78072989-44b3ac80-735d-11ea-8676-09c69f0409c4.png”>