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Moderately critical

Adobe Reader / Acrobat Multiple Vulnerabilities

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Release Date:  2007-01-03    Last Update:  2007-01-18    Views:  64,467

Secunia Advisory SA23483

Where:

From remote

Impact:

Hijacking, Cross Site Scripting, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Stefano Di Paola and Giorgio Fedon have discovered some vulnerabilities in Adobe Reader, which can be exploited by malicious people to conduct cross-site scripting attacks, as a vector for conducting cross-site request forgery attacks, or potentially compromise a user's system.

1) Input passed to a hosted PDF file is not properly handled by the browser plug-in, which can be exploited to cause memory corruption and potential execution of arbitrary code.

Example:
http://[host]/[filename].pdf#[some text]=javascript:document.write('[string including some "." characters]');

2) Input passed to a hosted PDF file is not properly sanitised by the browser plug-in before being returned to users. This can be exploited to execute arbitrary script code in a user's browser session in context of an affected site.

Example:
- http://[host]/[filename].pdf#[some text]=javascript:[code]

3) Input passed to a hosted PDF file is not properly sanitised by the browser plug-in and allows requesting arbitrary URLs, which provides a vector for performing CSRF attacks.

Example:
http://[host]/[filename].pdf#[some text]=[site]

It is also possible to cause the browser to stop responding by passing a lot of "#" characters.

The vulnerabilities are confirmed in Adobe Reader version 6.0.1 for Windows via Internet Explorer 6 and version 7.0.8 for Windows via Firefox 2.0.0.1. The following products are reportedly affected as well:
* Adobe Acrobat 3D
* Adobe Acrobat Standard, Professional, and Elements version 7.0.8 and prior
* other Adobe Reader versions prior to 7.0.8


Solution:
Upgrade to version 8.0.0.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1-3) Stefano Di Paola

Browser DoS reported by:
* Giorgio Fedon

Original Advisory:
Adobe:
http://www.adobe.com/support/security/advisories/apsa07-01.html
http://www.adobe.com/support/security/bulletins/apsb07-01.html
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3580
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3579

Wisec:
http://www.wisec.it/vulns.php?page=9

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Adobe Reader / Acrobat Multiple Vulnerabilities

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