Microsoft Internet Explorer 6.0 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$5k-$25k0.00

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 6.0 (Web Browser). Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Internet Explorer 6 for Windows XP SP2 and earlier allows remote attackers to spoof the address bar and possibly conduct phishing attacks by re-opening the window to a malicious Shockwave Flash application, then changing the window location back to a trusted URL while the Flash application is still loading. NOTE: this is a different vulnerability than CVE-2006-1192.

The issue has been introduced in 03/22/2001. The weakness was released 04/04/2006 by Hai Nam Luke as confirmed posting (Bugtraq). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2006-1626 since 04/05/2006. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k 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. The vulnerability was handled as a non-public zero-day exploit for at least 1839 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 21685 (MS06-021: Cumulative Security Update for Internet Explorer (916281)), 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 100035 (Cumulative Security Update for Internet Explorer Missing (MS06-021)).

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. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (25634), Tenable (21685), SecurityFocus (BID 17404†), OSVDB (24465†) and Secunia (SA19521†). Entries connected to this vulnerability are available at VDB-2289, VDB-2290, VDB-2291 and VDB-2292.

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21685
Nessus Name: MS06-021: Cumulative Security Update for Internet Explorer (916281)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Alternative
Status: 🔍

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

Patch: windowsupdate.microsoft.com
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
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Timelineinfo

03/22/2001 🔍
04/03/2006 +1837 days 🔍
04/04/2006 +1 days 🔍
04/04/2006 +0 days 🔍
04/05/2006 +0 days 🔍
04/05/2006 +0 days 🔍
04/05/2006 +0 days 🔍
04/10/2006 +5 days 🔍
04/20/2006 +10 days 🔍
05/14/2006 +24 days 🔍
06/13/2006 +30 days 🔍
03/12/2021 +5386 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: securityfocus.com⛔
Researcher: Hai Nam Luke
Status: Confirmed

CVE: CVE-2006-1626 (🔍)
OVAL: 🔍

X-Force: 25634 - Microsoft Internet Explorer .swf address bar spoofing, Medium Risk
SecurityFocus: 17404 - Microsoft Internet Explorer Address Bar Spoofing Vulnerability
Secunia: 19521 - Internet Explorer Window Loading Race Condition Vulnerability, Moderately Critical
OSVDB: 24465
SecurityTracker: 1016291 - Microsoft Internet Explorer Multiple Memory and Access Control Errors Let Remote Users Execute Arbitrary Code
Vulnerability Center: 11167 - [MS06-021] Internet Explorer 6 Address Bar Spoofing via Malicious Shockwave Flash Application, Medium
Vupen: ADV-2006-1218

See also: 🔍

Entryinfo

Created: 04/10/2006 11:10 AM
Updated: 03/12/2021 02:56 PM
Changes: 04/10/2006 11:10 AM (61), 04/07/2017 12:01 PM (39), 03/12/2021 02:52 PM (4), 03/12/2021 02:56 PM (1)
Complete: 🔍
Cache ID: 18:449:40

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