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XML External Entity vulnerability (Adobe Reader and Acrobat)

Advisory Name: XML External Entity vulnerability in Adobe Reader and Adobe Acrobat

Release Date: June 15, 2005

Last Updated: October 13, 2005

Product: Adobe Reader 7.0.5 Adobe Acrobat 7.0.5

Platform: Windows and Mac OS

Vulnerability Identifier: CAN-2005-1306

Overview: A vulnerability within Adobe Reader and Adobe Acrobat has been identified. Under certain circumstances using XML scripts, it is possible to discover the existence of local files.

Adobe has solutions available that can rectify these issues. Please refer to the "Recommendations" section for further information.

Effect: If exploited, it may be possible to discover the existence of local files on an end-user system.

Details: The vulnerability is within the Adobe Reader control. If an XML script is embedded in JavaScript, it is possible to discover the existence of local files. An attacker could then use the information gathered for malicious purposes.

However, the impact is minimized due to the fact that the existence of local files can only be discovered if the complete filenames and paths are known in advance by the attacker.

Recommendations:

Perform one of the following tasks:

-- If you use Adobe Reader 7.x on Windows or Mac OS, download the update to Adobe Reader 7.0.5 or later from the Adobe website at www.adobe.com/support/downloads/ .

-- If you use Adobe Acrobat 7.x on Windows or Mac OS, download the update to Adobe Acrobat 7.0.5 or later from the Adobe website at www.adobe.com/support/downloads/ .

Caveats: None

Vulnerability Identifier Cross-Reference: CVE ID: CAN-2005-1306

Acknowledgment: Adobe would like to thank Sverre H. Huseby, thathost.com, for reporting the issue.

Adobe Disclaimer

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If the software is designed for use with an application software product (the "Host Application") published by Adobe; Adobe grants you a non-exclusive license to use such software with the Host Application only; provided you possess a valid license from Adobe for the Host Application. Except as set forth below; such software is licensed to you subject to the terms and conditions of the End User License Agreement from Adobe governing your use of the Host Application.

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Last edited - 06/05/2006

 

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