1. GNU Beep 1.3 - 'HoleyBeep' Local Privilege Escalation. https://www.exploit-db.com/exploits/44452/. GNU Beep 1.3 - 'HoleyBeep' Local Privilege Escalation. https://www.exploit-db.com/exploits/44452/.
2. GNU Wget. https://www.gnu.org/software/wget/. GNU Wget. https://www.gnu.org/software/wget/.
3. Microsoft Office CVE-2018--8412 Privilege Escalation Vulnerability. https://www.symantec.com/security-center/vulnerabilities/writeup/105014. Microsoft Office CVE-2018--8412 Privilege Escalation Vulnerability. https://www.symantec.com/security-center/vulnerabilities/writeup/105014.
4. OpenSSH. https://www.openssh.com/. OpenSSH. https://www.openssh.com/.
5. Shadow Utils. https://www.centos.org/docs/5/html/5.5/technical-notes/shadow-utils.html. Shadow Utils. https://www.centos.org/docs/5/html/5.5/technical-notes/shadow-utils.html.