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Insecure Library Loading
Highly critical

Flash Player Unspecified Vulnerability and "addRequestHeader()" Bypass

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Release Date:  2006-07-10    Last Update:  2008-05-15    Views:  24,323

Secunia Advisory SA20971

Where:

From remote

Impact:

Security Bypass, Cross Site Scripting, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Two vulnerabilities have been reported in Flash Player, which can be exploited by malicious people to bypass certain security restrictions and potentially compromise a user's system.

1) Certain unspecified memory access errors within the handling of SWF files can be exploited via a specially crafted SWF file.

Successful exploitation may allow execution of arbitrary code.

The vulnerability has been reported in version 8.0.24. Prior versions may also be affected.

2) A design error exists in the implementation of the "addRequestHeader()" method. This can be exploited to overwrite arbitrary HTTP headers in an outgoing HTTP request to an arbitrary web site via the "LoadVars" class and the "send()" method.

Successful exploitation allows e.g. a malicious web site to execute arbitrary HTML and script code in a user's browser session in context of an arbitrary site by overwriting the "Host" header, but requires that the site has the same IP as the malicious web site but another virtual host.

The vulnerability has been confirmed in version 8.0.22.0. Other versions may also be affected.


Solution:
Upgrade to version 9.0.16.0 or another fixed version (see the vendor advisory for details).

Provided and/or discovered by:
1) Haifei Li, Fortinet Security Research.
2) Amit Klein, AKsecurity.

Original Advisory:
Adobe:
http://www.adobe.com/support/security/bulletins/apsb06-11.html

Fortinet:
http://www.fortiguardcenter.com/advisory/FGA-2006-20.html

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: Flash Player Unspecified Vulnerability and "addRequestHeader()" Bypass

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