SugarCRM <= 12.2.0 (Notes) Unrestricted File Upload Vulnerability
• Software Link:
• Affected Versions:
Version 12.2.0 and prior versions.
Version 12.0.2 and prior versions.
Version 11.0.5 and prior versions.
• Vulnerability Description:
When handling the “save” action within the “Notes” module the application allows uploading of any kind of file into the /upload/ directory. This one is protected by the main SugarCRM .htaccess file, i.e. it doesn’t allow access/execution for PHP files. However, this behaviour can be overridden if a subdirectory contains another .htaccess file. So, an attacker can leverage the vulnerability to firstly upload a new .htaccess file and then to upload the PHP code they want to execute.
• Proof of Concept:
https://karmainsecurity.com/pocs/CVE-2023-35808.php
• Solution:
Upgrade to version 12.3.0, 12.0.3, 11.0.6, or later.
• Disclosure Timeline:
[14/02/2023] – Vendor notified
[12/04/2023] – Fixed versions released
[17/06/2023] – CVE number assigned
[23/08/2023] – Publication of this advisory
• CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2023-35808 to this vulnerability.
• Credits:
Vulnerability discovered by Egidio Romano.
• Other References:
https://support.sugarcrm.com/Resources/Security/sugarcrm-sa-2023-006