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SNMP Enumeration

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lethanhtung01011980 edited this page Dec 27, 2019 · 8 revisions

Notes

  • SNMP protocols 1, 2, and 2c offer no traffic encryption
  • Weak authentication schemes
  • Commonly left configured with default public and private community strings

1. MIB tree

2. SNMP Scan

2.1 Nmap

  • nmap -sU --open -p 161 x.x.x.1-254 -oG mega-snmp.txt

2.2 onesixtyone

  • echo public > community
  • echo private >> community
  • echo manager >> community
  • for ip in $(seq 1 254);do echo x.x.x.$ip;done > ips
  • onesixtyone -c community -i ips

3. SNMP Enumeration

3.1 snmpwalk

  • Entire MIB Tree: snmpwalk -c public -v1 x.x.x.x
  • Windows Users: snmpwalk -c public -v1 x.x.x.x 1.3.6.1.4.1.77.1.2.25
  • Running Windows Processes: snmpwalk -c public -v1 x.x.x.x 1.3.6.1.2.1.25.4.2.1.2
  • Open TCP Ports: snmpwalk -c public -v1 x.x.x.x 1.3.6.1.2.1.6.13.1.3
  • Installed Software: snmpwalk -c public -v1 x.x.x.x 1.3.6.1.2.1.25.6.3.1.2

3.2 snmp-check

Need to wait a while for information

  • snmp-check -c public -v1 x.x.x.x
  • snmp-check -c public -v2c x.x.x.x

Sidebar

HOME

0. COMMON exploits

0.1 Quick scan

0.2 Windows exploits

0.3 Linux exploits

1. Scan Info

1.1 nmnap Scan

1.1.1 nmnap scripts

1.2 Passive Gathering

1.2.1 Info harvesting

1.3 Active Gathering

1.3.1 DNS Enumeration

1.3.2 Port Scanning

1.3.3 SMB Enumeration

1.3.4 SMTP Enumeration

1.3.5 SNMP Enumeration

1.3.6 Web Enumeration

1.3.7 NFS Enumeration

1.3.8 File Enumeration

2. Pre-attack

2.1 Scan for Vuls

2.2 OpenVAS

2.2 File transfer

2.2.1 Windows victims

2.2.2 Linux victims

2.2.3 TFTP

2.2.4 FTP

2.2.5 VBScript

2.2.6 PowerShell

2.2.7 Debug.exe

2.2.8 Base64

2.2.9 nc

3. Get Reverse Shell

3.1 Create reverse shell listener

3.2 Create reverse shell payload

3.3 Upload reverse shell payload

3.4 Execute reverse shell payload

3.5 PowerShell Reverse Shell

4. Exploits

4.1 Use exploit scripts

4.2 Windows Exploits

4.2.1 ms17-010 - cve2017-0143

4.2.2 ms09-050 - cve2009-3103

4.3 Linux Exploits

4.3.1 Login via private key

4.3.2 Knockd to open SSH port

4.4 Password crack

4.4.1 Password file / hash

4.4.2 Brute force networked services

4.4.3 Password hash attack

4.4.4 Mimikart crack Win hash

4.4.5 Other password crack

4.5 Buffer Overflow

4.5.1 BO Attack Steps

4.5.2 Windows BO Example

4.5.3 Linux BO Example

4.6 Web attacks

4.6.0 Injected codes

4.6.1 Tools

4.6.2 XSS

4.6.3 LFI

4.6.4 RFI

4.6.5 MySQL Injection

4.6.6 Web application proxies

4.6.7 Automated SQL Injection Tools

4.6.8 Client-side attacks

4.6.9 PHPInfo attacks

4.6.10 WordPress attacks

6. Escalate Privilege

6.1 Escalate in Windows

6.1.1 Overview

6.1.2 EoP WinXP

6.1.3 accesschk

6.1.4 sc-Service Control

6.1.5 Add admin user

6.1.6 Migrate process

6.1.7 Runas attack

6.1.8 Change permission

6.2 Escalate in Linux

6.2.1 Overview

6.2.2 Escalate steps

6.2.3 Escape restricted shell

6.2.4 Hijack cronjobs

6.2.5 Writable passwd

7. Access and further attacks

7.1 Access servers and get proofs

7.2 Disable Firewall

7.3 Enable RDP & SSH

8. Port redirection and Tunnelling

8.1 Port Forwading & Redirection

8.2 SSH Tunneling

8.3 Proxychains

8.4 HTTP Tunneling

8.5 Traffic Encapsulation

9. Metasploit

9.1 UI+Basic commands

9.2 Aux scans

9.3 Exploit attacks

9.4 MSF payloads

9.5 DIY MSF Module

9.6 Post exploit

10. Kali

10.1 Common commands

10.2 Useful directories

10.3 Meterpreter

10.4 Nc

10.5 Ncat

10.6 Wireshark

10.7 TCPDump

10.8 John

10.9 Access DB mdbtools

10.10 Email readpst

10.11 Unzip 7z

11. Thirdparty scripts

11.1 Useful tools

11.2 nmapAutomator

11.3 Impacket MS17-010

11.4 pwntools

11.5 PowerShell

11.6 PowerSploit

11.7 HackTheBox

11.8 nishang PowerShell

11.9 Sherlock PowerShell

11.10 Watson PowerShell

11.11 Empire PowerShell

11.12 Win Exp Suggester

11.13 Linux Pri Checker

11.14 NFS Shell

12. References

14. Exam

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