TippingPoint Zero Day Initiative
 

Bitdefender Total Security bdfwfpf Kernel Driver Double Free Privilege Escalation Vulnerability

ZDI-17-693: August 17th, 2017

CVE ID

CVSS Score

Affected Vendors

    Bitdefender

Affected Products

    Total Security

Vulnerability Details


This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Bitdefender Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within processing of the 0x8000E038 IOCTL in the bdfwfpf driver. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker could leverage this vulnerability to execute arbitrary code in the context of SYSTEM.

Vendor Response

Bitdefender states:


On AV 2017, build version: 21.2.25.30; On AV 2018, build version starting from 22.0.8.114.


Disclosure Timeline

    2017-05-04 - Vulnerability reported to vendor
    2017-08-17 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    bee13oy of CloverSec Labs