Microsoft Internet Explorer 6.0 on Win XP authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Internet Explorer 6.0 on Win XP. This affects an unknown function. The manipulation leads to authentication spoofing. This vulnerability is uniquely identified as CVE-2004-1686. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 6.0 on Win XP (Web Browser) and classified as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is integrity. The summary by CVE is:

Internet Explorer 6.0 in Windows XP SP2 allows remote attackers to bypass the Information Bar prompt for ActiveX and Javascript via an XHTML page that contains an Internet Explorer formatted comment between the DOCTYPE tag and the HTML tag, as demonstrated using the DesignScience MathPlayer ActiveX plugin.

The issue has been introduced in 08/27/2001. The weakness was disclosed 09/15/2004 as not defined posting (Bugtraq). The advisory is shared at marc.info. The identification of this vulnerability is CVE-2004-1686 since 02/21/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1115 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100010 (Microsoft Internet Explorer User Security Confirmation Bypass Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (20617), SecurityFocus (BID 11200†) and Vulnerability Center (SBV-5466†). The entry VDB-22221 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

08/27/2001 🔍
09/15/2004 +1115 days 🔍
09/15/2004 +0 days 🔍
09/16/2004 +1 days 🔍
09/16/2004 +0 days 🔍
09/28/2004 +12 days 🔍
02/21/2005 +146 days 🔍
04/14/2015 +3704 days 🔍
07/06/2025 +3736 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: marc.info
Status: Confirmed

CVE: CVE-2004-1686 (🔍)
GCVE (CVE): GCVE-0-2004-1686
GCVE (VulDB): GCVE-100-22217
X-Force: 20617
SecurityFocus: 11200 - Microsoft Internet Explorer User Security Confirmation Bypass Vulnerability
Vulnerability Center: 5466 - Microsoft Internet Explorer 6.0 SP2 Allows User Security Confirmation Bypass, Medium

See also: 🔍

Entryinfo

Created: 04/14/2015 18:10
Updated: 07/06/2025 16:21
Changes: 04/14/2015 18:10 (62), 05/07/2019 12:39 (4), 07/06/2025 16:21 (20)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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