Advisory Details

October 7th, 2015

(Pwn2Own) Microsoft Windows secdrv.sys Uninitialized Buffer Privilege Escalation Vulnerability

ZDI-15-457
ZDI-CAN-2835

CVE ID
CVSS SCORE 6.9, (AV:L/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
VULNERABILITY DETAILS


This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the secdrv.sys driver. The issue lies in the failure to initialize a buffer prior to using it. An attacker can leverage this vulnerability to achieve code execution at SYSTEM.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/library/security/ms15-097.aspx
DISCLOSURE TIMELINE
  • 2015-03-19 - Vulnerability reported to vendor
  • 2015-10-07 - Coordinated public release of advisory
CREDIT lokihardt@ASRT
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