Linux Privilege Escalation
  • Ansible Playbook Privilege Escalation
  • Apache Conf Privilege Escalation
  • Bash eq Privilege Escalation
  • Buffer Overflow Privilege Escalation
  • Chrome Remote Debugger Pentesting
  • Doas Privilege Escalation
  • Ghidra Debug Mode RCE
  • Gnuplot Privilege Escalation
  • LXC/LXD (Linux Container/Daemon) Privilege Escalation
  • Linux Privilege Escalation
  • Mozilla Pentesting
  • OpenSSL Privilege Escalation
  • Pip Download Code Execution
  • PolKit Privilege Escalation
  • Python Eval Code Execution
  • Python Jails Escape
  • Python Privilege Escalation
  • Python Yaml Privilege Escalation
  • Ruby Privilege Escalation
  • Rust Privilege Escalation
  • SSSD Privilege Escalation
  • Shared Library Hijacking
  • Snapd Privilege Escalation
  • Sudo ClamAV Privilege Escalation
  • Sudo Dstat Privilege Escalation
  • Sudo Exiftool Privilege Escalation
  • Sudo Fail2ban Privilege Escalation
  • Sudo Git Privilege Escalation
  • Sudo Java Privilege Escalation
  • Sudo OpenVPN Privilege Escalation
  • Sudo Path Traversal Privilege Escalation
  • Sudo Privilege Escalation
  • Sudo Privilege Escalation by Overriding Shared Library
  • Sudo Reboot Privilege Escalation
  • Sudo Screen Privilege Escalation
  • Sudo Service Privilege Escalation
  • Sudo Shutdown, Poweroff Privilege Escalation
  • Sudo Systemctl Privilege Escalation
  • Sudo Tee Privilege Escalation
  • Sudo Umount Privilege Escalation
  • Sudo Vim Privilege Escalation
  • Sudo Wall Privilege Escalation
  • Sudo Wget Privilege Escalation
  • Sudoedit Privilege Escalation
  • Tar Wildcard Injection PrivEsc
  • Update-Motd Privilege Escalation
  • irb (Interactive Ruby Shell) Privilege Escalation
  • Linux Backdoors
  • Linux Pivoting
  • Post eploitation
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Sudo Screen Privilege Escalation

Sudo screen command might be vulnerable to privilege escalation (PrivEsc)

.

Investigation

sudo -l

(root) /usr/bin/screen -r testsession
Copied!

If we can execute "screen" command as root, we can spawn a root shell from the screen session.

Exploitation

First execute "screen" command as root, then a screen session will be start. Now we can spawn a root shell by pressing “Ctrl+a+c” in the screen session.

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Last updated 1 year ago

  • Investigation
  • Exploitation
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