With this ability, the exploit is capable of performing the following: length to achieve arbitrary memory read and write capabilities in the process. If you reallocate the ba memory in the ValueOf function, it will cause a UAF because ba = object will save the original memory and use it after ValueOf function has been called.Īfter triggers UAF vulnerability, it corrupts the Vector. The ValueOf function can be overridden, so someone can change value of ba in the object ValueOf function.When you have a ByteArray object ba, and perform an assignment like this ba = object, it will call this object’s ValueOf function.This is a ByteArray class user-after-free (UAF) vulnerability, which we can describe simply. The readme also describes the root cause of the vulnerability. Description of vulnerability by Hacking Team Root Cause Analysis External reports have stated that the latest version Adobe Flash (version 18.0.0.194) is also affected.įigure 2. It states that this exploit can affect Adobe Flash Player 9 and later, and that desktop/metro IE, Chrome, Firefox and Safari are all affected. In the POC, there is a readme document which describes the details of this zero-day as we can see below. The leaked package contains both a Flash zero-day proof-of-concept (POC) which can open the Windows calculator and a release version with real attack shellcode. Description of vulnerability by Hacking Team Vulnerability Information One of the Flash exploits is described by Hacking Team as "the most beautiful Flash bug for the last four years." This Flash exploit has not yet been given the CVE number.įigure 1. One of the Flash Player vulnerabilities, CVE-2015-0349, has already been patched. The information dump includes at least three exploits - two for Flash Player and one for the Windows kernel. However, the leak also included the tools provided by the company to carry out attacks, and this included several exploits targeting Adobe Flash Player and Windows itself. Most of the leaked information covered Hacking Team's business practices, which seemingly contradict their official statements on who they sell their products to. The company has stated they do not do business with oppressive countries in the past. The company was known for selling what it described as tools used to lawfully intercept communications that could be used by governments and law enforcement agencies. Earlier this week the Italian company Hacking Team was hacked, with more than 400GB of confidential company data made available to the public.
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