WinPcap 4.0.1 NPF.SYS bpf_filter_init memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in WinPcap 4.0.1. This vulnerability affects the function bpf_filter_init of the file NPF.SYS. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2007-5756. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in WinPcap 4.0.1. Affected by this vulnerability is the function bpf_filter_init of the file NPF.SYS. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple array index errors in the bpf_filter_init function in NPF.SYS in WinPcap before 4.0.2, when run in monitor mode (aka Table Management Extensions or TME), and as used in Wireshark and possibly other products, allow local users to gain privileges via crafted IOCTL requests.

The bug was discovered 11/12/2007. The weakness was disclosed 11/13/2007 with iDefense (Website). The advisory is shared at labs.idefense.com. This vulnerability is known as CVE-2007-5756 since 10/31/2007. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 28182 (WinPcap NPF.SYS bpf_filter_init Arbitrary Array Indexing Local Privilege Escalation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at winpcap.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38433), Tenable (28182), SecurityFocus (BID 26409†), OSVDB (42166†) and Secunia (SA27676†). The entry VDB-3170 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 28182
Nessus Name: WinPcap NPF.SYS bpf_filter_init Arbitrary Array Indexing Local Privilege Escalation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: winpcap.org

Timelineinfo

10/31/2007 🔍
11/09/2007 +9 days 🔍
11/12/2007 +3 days 🔍
11/12/2007 +0 days 🔍
11/12/2007 +0 days 🔍
11/13/2007 +1 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/14/2007 +1 days 🔍
11/18/2007 +3 days 🔍
12/03/2007 +15 days 🔍
07/30/2019 +4257 days 🔍

Sourcesinfo

Advisory: labs.idefense.com⛔
Organization: iDefense
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-5756 (🔍)
GCVE (CVE): GCVE-0-2007-5756
GCVE (VulDB): GCVE-100-3457
X-Force: 38433 - WinPcap NPF.SYS bpf_filter_init() code execution, High Risk
SecurityFocus: 26409 - WinPcap NPF.SYS Bpf_Filter_Init Function Local Privilege Escalation Vulnerability
Secunia: 27676
OSVDB: 42166 - WinPcap Monitor Mode NPF.SYS bpf_filter_init Function Array Indexing Crafted IOCTL Request Local Privilege Escalation
SecurityTracker: 1018935
Vulnerability Center: 16825 - WinPcap NPF.SYS Errors Allow Local Users to Execute Arbitrary Code with Root Privileges, Medium
Vupen: ADV-2007-3835

See also: 🔍

Entryinfo

Created: 12/03/2007 13:49
Updated: 07/30/2019 11:39
Changes: 12/03/2007 13:49 (90), 07/30/2019 11:39 (1)
Complete: 🔍
Cache ID: 216:1ED:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!