Microsoft Sysinternals 4.71 DebugView Dbgv.sys Remote Code Execution

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.
6.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Sysinternals 4.71 and classified as problematic. This issue affects some unknown processing of the file Dbgv.sys of the component DebugView. Performing a manipulation results in Remote Code Execution. This vulnerability is reported as CVE-2007-4223. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Sysinternals 4.71. This affects an unknown part of the file Dbgv.sys of the component DebugView. The manipulation with an unknown input leads to a remote code execution vulnerability. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Dbgv.sys in Microsoft Sysinternals DebugView before 4.72 provides an unspecified mechanism for copying data into kernel memory, which allows local users to gain privileges via unspecified vectors.

The weakness was disclosed 11/07/2007 by Stephen Viewer with iDefense (Website). It is possible to read the advisory at labs.idefense.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is uniquely identified as CVE-2007-4223 since 08/08/2007. The attack needs to be done within the local network. No form of authentication is needed for exploitation. Technical details and a private exploit are known.

It is declared as proof-of-concept.

Upgrading to version 4.72 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38292), SecurityFocus (BID 26359†), OSVDB (38496†), Secunia (SA27552†) and SecurityTracker (ID 1018903†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Sysinternals 4.72
Patch: microsoft.com

Timelineinfo

08/08/2007 🔍
08/11/2007 +3 days 🔍
11/06/2007 +87 days 🔍
11/06/2007 +0 days 🔍
11/06/2007 +0 days 🔍
11/07/2007 +1 days 🔍
11/07/2007 +0 days 🔍
11/07/2007 +0 days 🔍
11/08/2007 +0 days 🔍
12/03/2007 +25 days 🔍
01/14/2013 +1869 days 🔍
04/23/2017 +1560 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: labs.idefense.com⛔
Researcher: Stephen Viewer
Organization: iDefense
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2007-4223 (🔍)
GCVE (CVE): GCVE-0-2007-4223
GCVE (VulDB): GCVE-100-3447
X-Force: 38292 - Microsoft Sysinternals DebugView privilege escalation, High Risk
SecurityFocus: 26359 - Microsoft DebugView Kernel Module Dbgv.SYS Local Privilege Escalation Vulnerability
Secunia: 27552 - Microsoft Sysinternals DebugView Dbgv.sys Privilege Escalation, Less Critical
OSVDB: 38496 - Microsoft Sysinternals DebugView Dbgv.sys Local Privilege Escalation
SecurityTracker: 1018903 - Microsoft DebugView 'Dbgv.sys' Module Lets Local Users Gain Kernel Level Privileges
Vulnerability Center: 38028 - Microsoft Sysinternals DebugView Before 4.72 Dbgv.sys Allows Local Privilege Escalation, High
Vupen: ADV-2007-3756

Entryinfo

Created: 12/03/2007 13:49
Updated: 04/23/2017 14:19
Changes: 12/03/2007 13:49 (82), 04/23/2017 14:19 (5)
Complete: 🔍
Cache ID: 216:A7A:103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!