SB2017041408 - Arbitrary file upload in Vtiger CRM

Description

This security bulletin contains information about 1 security vulnerability.

1) Arbitrary file upload (CVE-ID: CVE-2016-1713)

The vulnerability allows a local authenticated user to execute arbitrary code.

Unrestricted file upload vulnerability in the Settings_Vtiger_CompanyDetailsSave_Action class in modules/Settings/Vtiger/actions/CompanyDetailsSave.php in Vtiger CRM 6.4.0 allows remote authenticated users to execute arbitrary code by uploading a crafted image file with an executable extension, then accessing it via a direct request to the file in test/logo/. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6000.

Remediation

Install update from vendor's website.

References

• http://b.fl7.de/2016/01/vtiger-crm-6.4-auth-rce.html
• http://www.openwall.com/lists/oss-security/2016/01/12/4
• http://www.openwall.com/lists/oss-security/2016/01/12/7
• https://www.exploit-db.com/exploits/44379/