Title: Microsoft IE external.NavigateAndFind() Cross-Frame Vulnerability
Severity: MODERATE
Description:
Using the window.external.NavigateAndFind() function it is possible for a remote server to execute arbitrary javascript code on an Internet Explorer client machine in the local security context.
This function is used to load a web document and search it for specific strings, displaying the results in a secondary frame. However, the function will accept URLs of the form "javascript:", and should such a URL to passed to the function, the javascript is executed in the security context of the content of the secondary frame, and has access to that frame's current content.
This weakness could be used to retrieve pwl files, the local SAM database, cookies or any other locally stored information that the user has read access to. The attack could be made via the web, or in an HTML email or newsgroup posting.
Affected Products:
- Microsoft Internet Explorer 4.0.0
- Microsoft Internet Explorer 4.0.0 for WfW
- Microsoft Internet Explorer 4.0.0 for Windows 3.1
- Microsoft Internet Explorer 4.0.0 for Windows 95
- Microsoft Internet Explorer 4.0.0 for Windows NT 3.51
- Microsoft Internet Explorer 4.0.0 for Windows NT 4.0
- Microsoft Internet Explorer 5.0 for Windows 2000
- Microsoft Internet Explorer 5.0 for Windows 95
- Microsoft Internet Explorer 5.0 for Windows 98
- Microsoft Internet Explorer 5.0 for Windows NT 4.0
- Microsoft Internet Explorer 5.0.1
- Microsoft Internet Explorer 5.5
- Microsoft Internet Explorer for Unix 5.0.0
- Microsoft Windows 3.11.0
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows ME
- Microsoft Windows NT 4.0
References:
- Georgi Guninski: external.NavigateAndFind() Demonstration
- Microsoft: Frequently Asked Questions: Microsoft Security Bulletin (MS00-033)
- Microsoft: Q262509: Patch Available for "Frame Domain Verification," "Unauthorized Cookie A
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