A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files from external sites can upload a URL that redirects to an internal resource of any file type. The redirect is followed and loads the contents of the file from the redirected-to server. Files of disallowed types can be uploaded.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-27298 A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files from external sites can upload a URL that redirects to an internal resource of any file type. The redirect is followed and loads the contents of the file from the redirected-to server. Files of disallowed types can be uploaded.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T02:27:31.592Z

Reserved: 2021-08-25T00:00:00

Link: CVE-2021-40109

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-27T13:15:08.107

Modified: 2024-11-21T06:23:35.163

Link: CVE-2021-40109

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses