Microsoft Internet Explorer up to 6 DHTML Object race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as very critical has been discovered in Microsoft Internet Explorer up to 6. Affected is an unknown function of the component DHTML Object Handler. Such manipulation leads to race condition. This vulnerability is uniquely identified as CVE-2005-0553. The attack can be launched remotely. Moreover, an exploit is present. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer up to 6 (Web Browser). Affected by this issue is an unknown functionality of the component DHTML Object Handler. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Race condition in the memory management routines in the DHTML object processor in Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to execute arbitrary code via a malicious web page or HTML e-mail, aka "DHTML Object Memory Corruption Vulnerability".

The bug was discovered 10/25/2004. The weakness was disclosed 04/12/2005 by Berend-Jan Wever (3APA3A) as MS05-020 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is handled as CVE-2005-0553 since 02/26/2005. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ZIP Archive and been published immediately after the advisory. The exploit is available at edup.tudelft.nl. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 169 days. During that time the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100025 (Microsoft Internet Explorer Multiple Vulnerabilities (MS05-020)).

Applying the patch MS05-020 is able to eliminate this problem. The bugfix is ready for download at windowsupdate.microsoft.com. A possible mitigation has been published 9 months after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 3553. In this case the pattern NULL is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3378.

The vulnerability is also documented in the databases at X-Force (19831), SecurityFocus (BID 13120†), OSVDB (15465†), Secunia (SA14922†) and SecurityTracker (ID 1013692†). The entries VDB-1353 and VDB-1354 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
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Saint ID: exploit_info/ie_dhtml_object
Saint Name: Internet Explorer DHTML object vulnerability

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS05-020

Snort ID: 3553
Snort Message: WEB-CLIENT HTML DOM null DHTML element insertion attempt
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

10/25/2004 🔍
02/26/2005 +124 days 🔍
04/12/2005 +44 days 🔍
04/12/2005 +0 days 🔍
04/12/2005 +0 days 🔍
04/12/2005 +0 days 🔍
04/12/2005 +0 days 🔍
04/13/2005 +0 days 🔍
04/13/2005 +0 days 🔍
05/02/2005 +19 days 🔍
12/04/2005 +216 days 🔍
01/03/2025 +6970 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS05-020
Researcher: Berend-Jan Wever (3APA3A)
Status: Confirmed

CVE: CVE-2005-0553 (🔍)
GCVE (CVE): GCVE-0-2005-0553
GCVE (VulDB): GCVE-100-1352

OVAL: 🔍

CERT: 🔍
X-Force: 19831 - Microsoft Internet Explorer DHTML object buffer overflow, High Risk
SecurityFocus: 13120 - Microsoft Internet Explorer DHTML Object Race Condition Memory Corruption Vulnerability
Secunia: 14922 - Microsoft Internet Explorer Multiple Vulnerabilities, Highly Critical
OSVDB: 15465 - Microsoft IE DHTML Object Memory Corruption Code Execution
SecurityTracker: 1013692 - Microsoft Internet Explorer Buffer Overflows in DHTML, URL Parsing, and Content Advisor Let Remote Users Execute Arbitrary Code
Vulnerability Center: 7603 - [MS05-020] DHTML Objects in Microsoft Internet Explorer <= 6.0 Allow Remote Code Execution, Medium

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

Entryinfo

Created: 04/13/2005 12:40
Updated: 01/03/2025 18:57
Changes: 04/13/2005 12:40 (70), 04/07/2017 12:01 (41), 03/10/2021 19:13 (3), 06/16/2024 21:42 (15), 01/03/2025 18:57 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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