Microsoft Windows ActiveX Control hxvz.dll code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been declared as critical. Affected by this vulnerability is an unknown functionality in the library hxvz.dll of the component ActiveX Control Handler. Such manipulation leads to code injection. This vulnerability is traded as CVE-2008-1086. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows (Operating System) (version now known). Affected by this issue is some unknown processing in the library hxvz.dll of the component ActiveX Control Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The HxTocCtrl ActiveX control (hxvz.dll), as used in Microsoft Internet Explorer 5.01 SP4 and 6 SP1, in Windows XP SP2, Server 2003 SP1 and SP2, Vista SP1, and Server 2008, allows remote attackers to execute arbitrary code via malformed arguments, which triggers memory corruption.

The bug was discovered 04/08/2008. The weakness was shared 04/08/2008 with Microsoft as MS08-023 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is handled as CVE-2008-1086 since 02/28/2008. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 31796 (MS08-023: Security Update of ActiveX Kill Bits (948881)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90433 (Microsoft Security Update of ActiveX Kill Bits (MS08-023)).

Upgrading eliminates this vulnerability. Applying the patch MS08-023 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 immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6037.

The vulnerability is also documented in the databases at X-Force (41464), Tenable (31796), SecurityFocus (BID 28606†), OSVDB (44171†) and Secunia (SA29714†). The entries VDB-3672, VDB-3675 and VDB-3673 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 31796
Nessus Name: MS08-023: Security Update of ActiveX Kill Bits (948881)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801491
OpenVAS Name: Microsoft hxvz.dll ActiveX Control Memory Corruption Vulnerability (948881)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS08-023
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

02/28/2008 🔍
04/08/2008 +40 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/08/2008 +0 days 🔍
04/09/2008 +0 days 🔍
04/21/2008 +12 days 🔍
06/01/2025 +6250 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS08-023
Organization: Microsoft
Status: Confirmed

CVE: CVE-2008-1086 (🔍)
GCVE (CVE): GCVE-0-2008-1086
GCVE (VulDB): GCVE-100-3674

OVAL: 🔍

X-Force: 41464 - Microsoft Internet Explorer hxvz.dll object code execution, High Risk
SecurityFocus: 28606 - Microsoft 'hxvz.dll' ActiveX Control Memory Corruption Vulnerability
Secunia: 29714 - Microsoft Windows hxvz.dll ActiveX Control Memory Corruption, Highly Critical
OSVDB: 44171 - Microsoft Windows HxTocCtrl ActiveX (hxvz.dll) Memory Corruption
SecurityTracker: 1019800
Vulnerability Center: 18140 - [MS08-023] Microsoft HxTocCtrl ActiveX Control used in IE and Windows OS Allows Code Execution, Critical
Vupen: ADV-2008-1147

See also: 🔍

Entryinfo

Created: 04/21/2008 12:19
Updated: 06/01/2025 06:39
Changes: 04/21/2008 12:19 (103), 08/08/2019 10:52 (2), 06/01/2025 06:39 (18)
Complete: 🔍
Cache ID: 216:2D8:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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