Privilege Escalation

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Ghidra Debug Mode RCE

Gnuplot Privilege Escalation

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Sudo Path Traversal Privilege Escalation

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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

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Sudo Wget Privilege Escalation

Sudoedit Privilege Escalation

Tar Wildcard Injection PrivEsc

Update-Motd Privilege Escalation

irb (Interactive Ruby Shell) Privilege Escalation

Post Exploitation

Cover Your Tracks in Linux

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Shell Scripting

Sudo Screen Privilege Escalation

Last modified: 2023-02-05

Privilege Escalation

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

Investigation

sudo -l

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

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.

Privilege Escalation

Post Exploitation

Backup

Container

Archive

Attack

Protocol

Management

Sudo Screen Privilege Escalation

Investigation

Exploitation

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