Microsoft Internet Explorer up to 6 daxctle.ocx CPathCtl::KeyFrame heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Internet Explorer up to 6 and classified as critical. This issue affects the function CPathCtl::KeyFrame of the file daxctle.ocx. The manipulation leads to heap-based overflow. The identification of this vulnerability is CVE-2006-4446. The attack may be initiated remotely. Furthermore, there is an exploit available. It is recommended to disable the affected component. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in Microsoft Internet Explorer up to 6 (Web Browser) and classified as critical. This vulnerability affects the function CPathCtl::KeyFrame of the file daxctle.ocx. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in DirectAnimation.PathControl COM object (daxctle.ocx) in Microsoft Internet Explorer 6.0 SP1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a Spline function call whose first argument specifies a large number of points.

The weakness was disclosed 09/14/2006 by nop (Website). The advisory is available at xsec.org. This vulnerability was named CVE-2006-4446 since 08/29/2006. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known.

It is possible to download the exploit at xsec.org. It is declared as attacked. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 23644 (MS06-067: Cumulative Security Update for Internet Explorer (922760)), 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 100038 (Cumulative Security Update for Internet Explorer (MS06-067)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at windowsupdate.microsoft.com. A possible mitigation has been published 3 months after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 8792. In this case the pattern C46C1BC8-3C52-11D0-9200-848C1D000000 is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4760.

The vulnerability is also documented in the databases at X-Force (28608), Exploit-DB (2358), Zero-Day.cz (397), Tenable (23644) and SecurityFocus (BID 19738†). The entries VDB-32277, VDB-33245 and VDB-84652 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 23644
Nessus Name: MS06-067: Cumulative Security Update for Internet Explorer (922760)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Disable
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: windowsupdate.microsoft.com

Snort ID: 8792
Snort Message: WEB-ACTIVEX DirectAnimation.DAPoint2.1 ActiveX CLSID access
Snort Pattern: 🔍

Suricata ID: 2003102
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
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SourceFire IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/28/2006 🔍
08/28/2006 +0 days 🔍
08/29/2006 +1 days 🔍
08/29/2006 +0 days 🔍
08/29/2006 +0 days 🔍
09/14/2006 +16 days 🔍
09/14/2006 +0 days 🔍
09/18/2006 +3 days 🔍
09/20/2006 +2 days 🔍
11/14/2006 +55 days 🔍
11/14/2006 +0 days 🔍
06/16/2025 +6789 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: xsec.org
Researcher: nop
Status: Confirmed

CVE: CVE-2006-4446 (🔍)
GCVE (CVE): GCVE-0-2006-4446
GCVE (VulDB): GCVE-100-2542

OVAL: 🔍

X-Force: 28608 - Microsoft Internet Explorer daxctle.ocx denial of service, Medium Risk
SecurityFocus: 19738 - Microsoft Internet Explorer Daxctle.OCX Spline Method Heap Buffer Overflow Vulnerability
Secunia: 21910 - Internet Explorer Multiple Vulnerabilities, Extremely Critical
OSVDB: 28842 - Microsoft IE daxctle.ocx KeyFrame() Method Overflow
SecurityTracker: 1016764 - Microsoft Internet Explorer (IE) Buffer Overflow in 'daxctle.ocx' ActiveX Control Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 12763 - [MS06-067] Internet Explorer User Assisted Code Execution Vulnerability via Spline Method, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/18/2006 11:23 AM
Updated: 06/16/2025 03:28 AM
Changes: 09/18/2006 11:23 AM (105), 04/07/2017 12:01 PM (7), 03/13/2021 01:12 PM (2), 07/21/2024 08:29 PM (22), 06/16/2025 03:28 AM (4)
Complete: 🔍
Cache ID: 18:8BD:40

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