Advisory Details

August 17th, 2017

Bitdefender Total Security bdfwfpf Kernel Driver Double Free Privilege Escalation Vulnerability

ZDI-17-693
ZDI-CAN-4776

CVE ID CVE-2017-10950
CVSS SCORE 6.2, (AV:L/AC:H/Au:N/C:C/I:C/A:C)
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.

ADDITIONAL DETAILS


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 bee13oy of CloverSec Labs
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