codesource4u

1- What is Ethical  Hacking ?      Ethical hacking  and  ethical hacker  are terms used to        describe  hacking  performed by a company or individual to help identify potential threats on a computer or network. An ethical hacker attempts to bypass system security and search for any weak points that could be exploited by malicious hackers. This information is then used by the organization to improve the system security, in an effort to minimize or eliminate any potential attacks. 2- What is Dirty Cow in Linux ? Experts disclosed a new Linux kernel vulnerability dubbed Dirty COW that could be exploited by an unprivileged local attacker to escalate privileges. The security expert Phil Oester discovered in the Linux kernel a new flaw, dubbed ‘ Dirty COW ‘ that could be exploited by a local attacker to escalate privileges. The name “Dirty COW” is due to the fact that it’s triggered by a race condition in the way the Linux kernel’s memory subsystem handles copy-on-write (COW