05/01/2007

Adobe Reader security flaw discovered

Adobe Reader software users are being urged to urgently update their software to version 8 following the discovery of a potentially serious security flaw.

The problem relates to the way that the older versions of Adobe Reader browser allow parameters to be sent to the program when opening a .pdf file - a feature that could be exploited maliciously.

This development is viewed as significant, in particular for the relative ease in which this weakness can be exploited. Use of this “feature” requires no exploitation of vulnerabilities on the server side.

In addition, according to computer security experts, any website that hosts a .pdf file can be used to conduct this form of attack, which due to the power and flexibility of JavaScript has the potential to inflict serious damage.

Experts reported that the problem appeared to be limited to the Firefox browser, but other browser software, including Internet Explorer, are vulnerable.

Computer systems managers are being urged to implement JavaScript filtering capabilities on corporate firewalls and intrusion detection systems, and to disable Adobe Reader plugin capabilities in web browsers.

Also any unsolicited files with links to .pdf files on the web should be treated as suspicious.

Upgrading to Adobe Reader version 8 will remove the security weakness.

(SP/KMcA)

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