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

Post Exploitation

Cover Your Tracks in Linux

Linux Backdoors

Linux Pivoting

Backup

BorgBackup Pentesting

Container

LXC/LXD (Linux Container/Daemon) Privilege Escalation

Attack

Fork Bomb

Protocol

X11 (X Window System) Pentesting

Management

Add & Delete Groups in Linux

Add & Delete Users in Linux

File & Directory Ownership in Linux

File & Directory Permission in Linux

File Transfer in Linux

Shell Scripting

Crack Zip Password

Last modified: 2023-07-14

John The Ripper

Format the archived file to make the John to recognize it, then crack the hash using John.

zip2john example.zip > hash.txt
john --wordlist=wordlist.txt hash.txt

Fcrackzip

# -u: unzip
# -D: dictionary
# -p: strgin as initial password/file
fcrackzip -u -D -p passwords.txt sample.zip

Bkcrack

bkcrack is useful for cracking legacy zip encryption with a known plaintext attack.

Download the Tool

wget https://github.com/kimci86/bkcrack/releases/download/v1.5.0/bkcrack-1.5.0-Linux.tar.gz
tar -xf bkcrack-1.5.0-Linux.tar.gz
cd bkcrack-1.5.0-Linux.tar.gz

Recover Internal Keys

First we check what files in the target zip file.

# List entries
./bkcrack -L encrypted.zip

Assume the encrypted.zip contains the secret.key file and we know that it contains the "secret is" string.
Then we need to create a plain file with the same string "secret is".

echo -n "secret is" > plainfile

Now crack the keys using these files.

./bkcrack -C encrypted.zip -c secret.key -p plainfile

For example, we get the result 8257499e 175bb63c fcbd5ff2.
We can recover the password by running the following command.

./bkcrack -C encrypted.zip -c secret.key -p plainfile -k 8257499e 175bb63c fcbd5ff2 -d result.txt

After that, result.txt is generated so we can see the content of the file.