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Advisory: Local file discovery in Adobe SVG Viewer through Microsoft Internet Explorer on Windows

Release Date: May 3rd, 2005

Product: Adobe SVG Viewer 3.02 and earlier versions

Platform: Windows

Vulnerability Identifier: CAN-2005-0918

Overview: A vulnerability within the Adobe SVG Viewer ActiveX control has been identified; under certain circumstances if the Internet Explorer ActiveX control is directly invoked by a web page, it is possible to discover the existence of local files by monitoring the behavior of certain methods.

Adobe has solutions available that can rectify these issues. See the "Recommendation" section for further information.

Effect: If exploited, it may be possible to discover the existence of local files on an end-user system running Internet Explorer on Windows. Note that the contents of the file are not read or exposed.

Details: One of the methods exposed by ActiveX in Internet Explorer can be used to trigger a flaw in the Adobe browser control. An attacker would be able to determine what specifically queried files exist on the user's system, although the contents of the file are not accessible.

However, the impact is minimized because the existence of local files can only be discovered if the complete file names and paths are known in advance by the attacker and the recipient is running Internet Explorer.

Recommendation:

If you use Adobe SVG Viewer 3.02 or earlier, upgrade by running the Adobe SVG Viewer 3.03 installer located at www.adobe.com/svg/viewer/install.

Caveats: If you previously installed the Adobe SVG Viewer add-on support for ICC colors you must install version 3.03 of the ICC add-on after upgrading to Adobe SVG Viewer 3.03.

Vulnerability Identifier Cross-Reference: CVE ID: CAN-2005-0918

Acknowledgment: Adobe is grateful to Hyperdose Security for bringing this potential security risk to our attention.

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Document 323585
Last edited - 05/03/2005

 

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