Title: WinPcap NPF.SYS BIOCGSTATS Parameters Local Privilege Escalation Vulnerability
Severity: HIGH
Description:
WinPcap provides realtime link-level network access on Windows operating systems.
WinPcap is prone to a local privilege-escalation vulnerability because the software allows an attacker to pass malicious Interrupt Request Packet (IRP) parameters to IOCTL 9031 (otherwise known as BIOCGSTATS) in the 'NPF.SYS' file. This will allow the attacker to overwrite and execute arbitrary kernel memory.
The attacker can exploit this issue to execute arbitrary code with kernel-level privileges. Successfully exploiting this issue will result in the complete compromise of affected computers.
WinPcap 4.0 is vulnerable to this issue.
Affected Products:
- WinPcap WinPcap 3.1
- WinPcap WinPcap 4.0
References:
- WinPcap: WinPcap Change Log
- WinPcap: WinPcap Web Site
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