Microsoft Internet Explorer 6 URI Scheme cross site scripting ⚔ [Disputed]

Summaryinfo

A vulnerability was found in Microsoft Internet Explorer 6. It has been declared as problematic. Affected is an unknown function of the component URI Scheme Handler. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2007-3576. The attack can be launched remotely. No exploit exists. The real existence of this vulnerability is still doubted at the moment. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 6 (Web Browser) and classified as problematic. Affected by this issue is some unknown processing of the component URI Scheme Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity. CVE summarizes:

** DISPUTED ** Microsoft Internet Explorer 6 executes web script from URIs of arbitrary scheme names ending with the "script" character sequence, using the (1) vbscript: handler for scheme names with 7 through 9 characters, and the (2) javascript: handler for scheme names with 10 or more characters, which might allow remote attackers to bypass certain XSS protection schemes. NOTE: other researchers dispute the significance of this issue, stating "this only works when typed in the address bar."

The issue has been introduced in 03/22/2001. The weakness was disclosed 07/05/2007 (Website). The advisory is shared for download at 0x000000.com. This vulnerability is handled as CVE-2007-3576 since 07/05/2007. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 2296 days. During that time the estimated underground price was around $5k-$25k. The real existence of this vulnerability is still doubted at the moment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (45813†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Internet Explorer

Version

• 6

License

• commercial

Support

• end of life

Website

• Vendor: https://www.microsoft.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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