Microsoft Internet Explorer up to 6 Tag Object mshtml.dll resource management

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

Summaryinfo

A vulnerability, which was classified as very critical, was found in Microsoft Internet Explorer up to 6. This affects an unknown function in the library mshtml.dll of the component Tag Object Handler. Such manipulation leads to resource management. This vulnerability is documented as CVE-2006-1992. The attack can be executed remotely. Additionally, an exploit exists. It is best to exchange the affected component with an alternative.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer up to 6 (Web Browser). It has been rated as very critical. Affected by this issue is some unknown functionality in the library mshtml.dll of the component Tag Object Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. CVE summarizes:

mshtml.dll 6.00.2900.2873, as used in Microsoft Internet Explorer, allows remote attackers to cause a denial of service (crash) via nested OBJECT tags, which trigger invalid pointer dereferences including NULL dereferences. NOTE: the possibility of code execution was originally theorized, but Microsoft has stated that this issue is non-exploitable.

The weakness was released 04/25/2006 by Michal Zalewski (Website). The advisory is available at lists.grok.org.uk. This vulnerability is handled as CVE-2006-1992 since 04/24/2006. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/12/2021). It is expected to see the exploit prices for this product decreasing in the near future.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at windowsupdate.microsoft.com. The problem might be mitigated by replacing the product with as an alternative. The best possible mitigation is suggested to be establishing an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4403.

The vulnerability is also documented in the databases at X-Force (25978), SecurityFocus (BID 17658†), OSVDB (24966†), Secunia (SA19762†) and SecurityTracker (ID 1016001†). Entry connected to this vulnerability is available at VDB-2292. 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: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Alternative
Status: 🔍
Patch: windowsupdate.microsoft.com
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/22/2006 🔍
04/24/2006 +2 days 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/25/2006 +1 days 🔍
04/25/2006 +0 days 🔍
04/26/2006 +0 days 🔍
05/02/2006 +6 days 🔍
03/12/2021 +5428 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: lists.grok.org.uk
Researcher: Michal Zalewski
Status: Not defined

CVE: CVE-2006-1992 (🔍)
GCVE (CVE): GCVE-0-2006-1992
GCVE (VulDB): GCVE-100-2186
X-Force: 25978 - Microsoft Internet Explorer nested OBJECT tag memory corruption, Medium Risk
SecurityFocus: 17658 - Microsoft Internet Explorer Nested OBJECT Tag Memory Corruption Vulnerability
Secunia: 19762 - Internet Explorer Exception Handling Memory Corruption Vulnerability, Highly Critical
OSVDB: 24966
SecurityTracker: 1016001 - Microsoft Internet Explorer Bug in Processing Nested OBJECT Tags Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 11267 - mshtml.dll in Internet Explorer Denial-Of-Service and Code Execution via nested OBJECT tags, Medium
Vupen: ADV-2006-1507

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

Entryinfo

Created: 05/02/2006 15:12
Updated: 03/12/2021 18:34
Changes: 05/02/2006 15:12 (58), 04/07/2017 12:01 (32), 03/12/2021 18:34 (4)
Complete: 🔍
Cache ID: 216::103

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

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