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This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An authenticated attacker can upload a malicious file on Vtiger
CRM, in order for example to upload a Trojan.

– Impacted products: Vtiger CRM.
– Severity: 2/4.
– Creation date: 29/09/2015.

DESCRIPTION OF THE VULNERABILITY

The Vtiger CRM product offers a web service.

It can be used by an authenticated user to upload a file
containing the company logo. However, as the file type is not
restricted, a PHP file can be uploaded on the server, and then
executed.

An authenticated attacker can therefore upload a malicious file on
Vtiger CRM, in order for example to upload a Trojan.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/Vtiger-CRM-file-upload-via-saveLogo-17995