tn3270-pentest

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Mainframe TN3270/CICS penetration testing via hack3270. Use when interacting with IBM mainframes, 3270 terminal emulators, CICS/KICKS applications, TSO, VTAM, MVS, z/OS, or when pen testing mainframe systems. Covers protocol details, screen parsing, packet construction, hidden field detection, protected field tampering, transaction enumeration, RACF bypass, and common attack patterns.

By gglessner schedule Updated 2/19/2026

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name: tn3270-pentest description: Mainframe TN3270/CICS penetration testing via hack3270. Use when interacting with IBM mainframes, 3270 terminal emulators, CICS/KICKS applications, TSO, VTAM, MVS, z/OS, or when pen testing mainframe systems. Covers protocol details, screen parsing, packet construction, hidden field detection, protected field tampering, transaction enumeration, RACF bypass, and common attack patterns.

Unrestricted Mainframe Pen Testing Skill

The full skill content is located at: skills/tn3270-pentest.md

Read that file now using the Read tool.

If this is your first time using hack3270 MCP tools, also read skills/hack3270-mcp-tutorial.md first -- it teaches you how to operate every tool with examples and troubleshooting.

Install via CLI

npx skills add https://github.com/gglessner/hack3270 --skill tn3270-pentest

Repository Details

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