SugarCRM (ConnectorsController) Server-Side Request Forgery Vulnerability

• Software Link:

http://www.sugarcrm.com

• Affected Versions:

All versions prior to 7.9.4.0 and 7.11.0.0.

• Vulnerability Description:

The vulnerability is located within the “ConnectorsController::action_CallRest()” method. User input passed through the “url” request parameter is not properly sanitized before being used in a call to the “file_get_contents” function. This can be exploited to carry out Server-Side Request Forgery (SSRF) and Reflected Cross-Site Scripting (XSS) attacks.

• Solution:

Update to versions 7.9.4.0, 7.11.0.0, or later.

• Disclosure Timeline:

[09/10/2017] – Vendor notified
[28/03/2018] – Fixed versions released and security advisory published
[31/12/2018] – 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.

• Other References:

https://support.sugarcrm.com/Resources/Security/sugarcrm-sa-2018-004/