Red Securium

The real identity of Tessa88—the notorious hacker tied to several high-profile cyber attacks including the  LinkedIn ,  DropBox  and  MySpace  mega breaches—has been revealed as  Maksim Vladimirovich Donakov  (Максим Владимирович Донаков), a resident of Penza, Russian Federation. In early 2016, a hacker with pseudonym Tessa88 emerged online offering stolen databases from some of the biggest social media websites in the world, including LinkedIn, MySpace,  VKontakte (vk.com), Dropbox,  Rambler , and  Twitter , for sale in various underground hacking forums. The stolen data, taken years ago from several social media sites, included more than half a billion username and password combinations, which were then used in phishing, account takeover, and other cyber attacks. Though Tessa88's profile was active for a few months between February and May 2016, the OPSEC analysis revealed that the same person was involved in various cybercriminal activities since as early as 2012 under dif

Hold tight, this may blow your mind… A low-privileged user account on most Linux operating systems with UID value anything greater than 2147483647 can execute any systemctl command unauthorizedly—thanks to a newly discovered vulnerability. The reported vulnerability actually resides in PolicyKit (also known as polkit)—an application-level toolkit for Unix-like operating systems that defines policies, handles system-wide privileges and provides a way for non-privileged processes to communicate with privileged ones, such as "sudo," that does not grant root permission to an entire process. The issue, tracked as  CVE-2018-19788 , impacts PolicyKit version 0.115 which comes pre-installed on most popular Linux distributions, including  Red Hat ,  Debian ,  Ubuntu , and CentOS. The vulnerability exists due to PolicyKit's improper validation of permission requests for any low-privileged user with UID greater than INT_MAX. Where, INT_MAX is a constant in computer programmin