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PostgreSQL Penetration Testing Guide Covers Attack Techniques and Hardening

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Summary

A PostgreSQL penetration-testing tutorial covers reconnaissance, credential attacks, file access, command execution and reverse shells, then recommends access controls, least privilege, monitoring and patching.

Key points

  • The guide demonstrates PostgreSQL lab setup, remote-access configuration and service discovery.
  • It covers testing authentication with weak or default credentials.
  • It describes file access and password-hash retrieval techniques using PostgreSQL features and Metasploit.
  • It demonstrates command execution through COPY FROM PROGRAM and obtaining a reverse shell in a test environment.
  • Recommended defenses include strong credentials, least-privilege roles, restricted superuser access, logging, monitoring and timely patching.
  • The author says testing should be authorized and conducted within a defined scope.

Article Details

Topic
PostgreSQL penetration-testing techniques, including reconnaissance, credential attacks, database file access, command execution, reverse shells, and hardening.

MITRE ATT&CK

T1059.004 · Unix ShellThe guide demonstrates executing operating-system commands through PostgreSQL, including a reverse-shell command using /bin/sh.T1105 · Ingress Tool TransferThe guide describes a Metasploit module that uploads a malicious shared-object payload to a PostgreSQL host for execution.T1110 · Brute ForceThe guide demonstrates password attacks against PostgreSQL services using Hydra and describes credential brute forcing.

Products

PostgreSQLThis guide walks through a real-world PostgreSQL penetration testing workflow from reconnaissance to post-exploitation, demonstrating scanning, authentication attacks, file reads, command execution, and reverse shells

Tools

HydraUsing Hydra, we can perform controlled password attacks against identified PostgreSQL services:Metasploit FrameworkOne way to perform this attack is by using the Metasploit Framework module designed for PostgreSQL file reading.MeterpreterCommand execution techniques (COPY FROM PROGRAM) enable system command execution and reverse shells, often escalated to Meterpreter.Nmapnmap -sV -p5432 192.168.1.8Reverse Shell GeneratorThis can be achieved by generating a reverse shell payload using Reverse Shell Generator, a tool that provides various ready-to-use reverse shell commands.

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