---
id: 7793
title: "Mapping Mainframe Memory Made Easy"
source_domain: netspi.com
source_url: "https://www.netspi.com/blog/technical-blog/mainframe-penetration-testing/mapping-mainframe-memory/"
published_at: "2024-09-16T00:00:00Z"
tags: ["pentesting", "mainframe", "zos", "tso", "rexx"]
phying_url: "https://phying.com/item/7793"
lang: en
---

# Mapping Mainframe Memory Made Easy

## Summary

When pentesters can't run TSO commands like PARMLIB, in-memory control blocks still reveal authorized command tables. A REXX script walks the CVT pointer chain to dump z/OS TSO configuration data.

## Intelligence Metadata

- **Sources:** netspi.com
- **Published:** 2024-09-16T00:00:00Z
- **Original:** https://www.netspi.com/blog/technical-blog/mainframe-penetration-testing/mapping-mainframe-memory/
- **Phying News:** https://phying.com/item/7793