Yesterday we posted that iOS 4.0 and iOS 4.0.1 contains a PDF exploit which is used by JailbreakMe 2.0 Star to jailbreak iPhone 4, 3G and 3GS. However, the same exploit can be used by some bad guys to inject some malicious code in any PDF file which if downloaded on your iPhone can create some serious security and privacy issues, though the chances are very thin.
We have also posted a manual fix to prevent the auto-downloading of any PDF file, but there is a simple free app “PDF Loading Warner” available in Cydia for jailbroken iPhones that does the same job.
Go to Cydia and search for PDF Loading Warner to download and install on your iPhone. It will warn you before you download any PDF file.
As said earlier the chances of this exploit usage are very low, so you don’t need to worry about it, but you can install this little app to be on safe side.
