WinPcap NPF.SYS driver code execution
| winpcap-npf-code-execution (35309) |  Medium Risk |
Description:
WinPcap could allow a local attacker to execute arbitrary code on the system, caused by a vulnerability in the NPF.SYS driver. By sending a specially-crafted IRP packet, an attacker could exploit this vulnerability to overwrite memory and execute arbitrary code on the system.
*CVSS:
| Base Score: | 4.9 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.8 |
| Exploitability: | Proof-Of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Upgrade to the latest version of WinPcap (4.0.1 or later), available from the WinPcap Web site. See References.
References:
- iDefense Labs PUBLIC ADVISORY: 07.09.07: WinPcap NPF.SYS Local Privilege Escalation Vulnerability.
- WinPcap Web site: WinPcap, The Packet Capture and Network Monitoring Library for Windows.
- BID-24829: WinPcap NPF.SYS BIOCGSTATS Parameters Local Privilege Escalation Vulnerability
- CVE-2007-3681: The IOCTL 9031 (BIOCGSTATS) handler in the NPF.SYS device driver in WinPcap before 4.0.1 allows local users to overwrite memory and execute arbitrary code via malformed Interrupt Request Packet (Irp) parameters.
- SA25982: WinPcap NPF.SYS IOCTL Handler Privilege Escalation Vulnerability
- SECTRACK ID: 1018350: WinPcap Input Validation Flaw in NPF.SYS Driver Lets Local Users Gain Elevated Privileges
- VUPEN/ADV-2007-2468: WinPcap NPF.SYS Device Driver IOCTL Handler Privilege Escalation Vulnerability
Platforms Affected:
- Microsoft Windows Vista
- Winpcap WinPcap prior to 4.0.1
Reported:
Jul 09, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.