CVE-2021-22968 Detail
This vulnerability is currently awaiting analysis.
Description
A bypass of adding remote files in Concrete CMS (previously concrete5) File Manager leads to remote code execution in Concrete CMS (concrete5) versions 8.5.6 and below.The external file upload feature stages files in the public directory even if they have disallowed file extensions. They are stored in a directory with a random name, but it’s possible to stall the uploads and brute force the directory name. You have to be an admin with the ability to upload files, but this bug gives you the ability to upload restricted file types and execute them depending on server configuration.To fix this, a check for allowed file extensions was added before downloading files to a tmp directory.Concrete CMS Security Team gave this a CVSS v3.1 score of 5.4 AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:NThis fix is also in Concrete version 9.0.0
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-98 | Improper Control of Filename for Include/Require Statement in PHP Program (‘PHP Remote File Inclusion’) | HackerOne |
Change History
0 change records found show changes
Quick Info
CVE Dictionary Entry:
CVE-2021-22968
NVD Published Date:
11/19/2021
NVD Last Modified:
11/19/2021
Source:
HackerOne