CVE-2019-5009 Information

Description

Vtiger CRM 7.1.0 before Hotfix2 allows uploading files with the extension \php3\ in the logo upload field if the uploaded file is in PNG format and has a size of 150x40. One can put PHP code into the image; PHP code can be executed using ? ?\ tags as demonstrated by a CompanyDetailsSave action. This bypasses the bad-file-extensions protection mechanism. It is related to actions/CompanyDetailsSave.php actions/UpdateCompanyLogo.php and models/CompanyDetails.php.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

http://code.vtiger.com/vtiger/vtigercrm/commit/52fc2fb520ddc55949c2fbedaabd61ddd0109375 http://lists.vtigercrm.com/pipermail/vtigercrm-developers/2019-January/037852.html https://pentest.com.tr/exploits/Vtiger-CRM-7-1-0-Remote-Code-Execution.html https://www.exploit-db.com/exploits/46065

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.2