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(Pwn2Own) Microsoft Windows AFD.SYS Dangling Pointer Privilege Escalation Vulnerability
Reference ID: SSA-1403Affected products/versions: Microsoft Windows
Description from ZDI advisory: This vulnerability allows remote 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 handling of sockets. The issue lies in the failure to properly handle error conditions leading to a pointer not being reset. An attacker can leverage this vulnerability to raise privileges and execute code under the context of SYSTEM.
For a detailed write up about how we exploited this vulnerabiltiy please read our blog post
References:
ZDI-14-220
CVE-2014-1767
Microsoft Security Bulletin MS14-040