full-disclosure - [FD] [KIS-2023-11] SugarCRM <= 13.0.1 (set_note_attachment) Unrestricted File Upload Vulnerability

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Message-ID: <455078f31ecff87297c6000d491ce3d0@karmainsecurity.com>
Date: Thu, 26 Oct 2023 17:25:44 +0200
From: Egidio Romano <research@...mainsecurity.com>
To: Full Disclosure <fulldisclosure@...lists.org>,
 submissions@...ketstormsecurity.com
Subject: [FD] [KIS-2023-11] SugarCRM <= 13.0.1 (set_note_attachment)
 Unrestricted File Upload Vulnerability

-------------------------------------------------------------------------------
SugarCRM <= 13.0.1 (set_note_attachment) Unrestricted File Upload 
Vulnerability
-------------------------------------------------------------------------------

[-] Software Link:

https://www.sugarcrm.com

[-] Affected Versions:

Version 13.0.1 and prior versions.
Version 12.0.3 and prior versions.

[-] Vulnerability Description:

When handling the "set_note_attachment" SOAP call, the application 
allows uploading of
any kind of file into /upload/ directory. This one is protected by the 
main SugarCRM
.htaccess file, i.e. it doesn't allow access/execution of PHP files. 
However, this
behavior can be overridden if the 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/KIS-2023-11.php

[-] Solution:

Upgrade to version 13.0.2, 12.0.4, or later.

[-] Disclosure Timeline:

[23/04/2023] - Vendor notified
[21/09/2023] - Fixed versions released
[06/10/2023] - CVE identifier requested
[26/10/2023] - Publication of this advisory

[-] CVE Reference:

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has not assigned a CVE identifier for this vulnerability.

[-] Credits:

Vulnerability discovered by Egidio Romano.

[-] Original Advisory:

https://karmainsecurity.com/KIS-2023-11

[-] Other References:

https://support.sugarcrm.com/resources/security/sugarcrm-sa-2023-011/
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