CVE-2015-6856 Information

Description

Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://packetstormsecurity.com/files/134987/Dell-Authentication-Driver-Uncontrolled-Write.html http://seclists.org/fulldisclosure/2015/Dec/81 http://www.securityfocus.com/archive/1/537161/100/0/threaded http://www.securityfocus.com/bid/79643 https://www.korelogic.com/Resources/Advisories/KL-001-2015-008.txt

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8