
Simon Janusz developed and enhanced security scanning modules for the rapid7/metasploit-framework repository, focusing on authentication workflows, vulnerability assessment, and network security. He engineered login scanners for platforms like TeamCity, pfSense, and OPNSense, implementing robust session management, CSRF handling, and cryptographic protections using Ruby and Python. Simon refactored code for reliability, improved error handling, and consolidated HTTP interactions to streamline backend processes. He also contributed to GraphQL schema discovery and strengthened test automation with regular expressions and dependency management. His work addressed edge cases, reduced resource leaks, and improved module maintainability, demonstrating depth in backend development and security engineering.

October 2025 monthly summary for rapid7/metasploit-framework. Focused on improving crawler reliability by addressing a critical edge case in the Anemone Crawler. Implemented a bug fix that prevents infinite recursion when the crawler encounters error pages (404) by validating that the referring page is valid before processing. This prevents repeated processing of invalid pages, reduces wasted resources, and speeds up scan results.
October 2025 monthly summary for rapid7/metasploit-framework. Focused on improving crawler reliability by addressing a critical edge case in the Anemone Crawler. Implemented a bug fix that prevents infinite recursion when the crawler encounters error pages (404) by validating that the referring page is valid before processing. This prevents repeated processing of invalid pages, reduces wasted resources, and speeds up scan results.
2025-07 monthly summary for rapid7/metasploit-framework: Key features delivered include updating the rex-socket dependency to 0.1.63 in Gemfile.lock to improve stability and security. Major bugs fixed include making acceptance test prompt matching robust across framework versions by refining the regex, reducing flaky test failures. Overall impact: improved test reliability, faster and more predictable release cycles, and better alignment with security and stability goals. Technologies/skills demonstrated: dependency management and Gemfile.lock maintenance, test automation and reliability engineering, regex tuning, cross-version compatibility, and CI stability.
2025-07 monthly summary for rapid7/metasploit-framework: Key features delivered include updating the rex-socket dependency to 0.1.63 in Gemfile.lock to improve stability and security. Major bugs fixed include making acceptance test prompt matching robust across framework versions by refining the regex, reducing flaky test failures. Overall impact: improved test reliability, faster and more predictable release cycles, and better alignment with security and stability goals. Technologies/skills demonstrated: dependency management and Gemfile.lock maintenance, test automation and reliability engineering, regex tuning, cross-version compatibility, and CI stability.
June 2025: Delivered a focused bug fix in rapid7/metasploit-framework to improve reliability of the Bleichenbacher Oracle module in Python 2 environments. Refactored exception handling to ensure sockets are closed on errors, and updated logging to use Python f-strings for readability and consistency. These changes reduce resource leaks, improve stability in legacy deployments, and align code quality with modern logging practices.
June 2025: Delivered a focused bug fix in rapid7/metasploit-framework to improve reliability of the Bleichenbacher Oracle module in Python 2 environments. Refactored exception handling to ensure sockets are closed on errors, and updated logging to use Python f-strings for readability and consistency. These changes reduce resource leaks, improve stability in legacy deployments, and align code quality with modern logging practices.
May 2025: Delivered the GraphQL Introspection Scanner module for rapid7/metasploit-framework, enhancing GraphQL asset discovery and schema visibility in enabled-introspection environments. The work includes robust query construction, improved error handling and reporting, and user-facing documentation. These changes reduce time to identify GraphQL schemas and improve accuracy of results in penetration testing workflows.
May 2025: Delivered the GraphQL Introspection Scanner module for rapid7/metasploit-framework, enhancing GraphQL asset discovery and schema visibility in enabled-introspection environments. The work includes robust query construction, improved error handling and reporting, and user-facing documentation. These changes reduce time to identify GraphQL schemas and improve accuracy of results in penetration testing workflows.
April 2025 monthly summary for rapid7/metasploit-framework: Focused on strengthening reliability, traceability, and robustness of scanning and module search. Key features delivered include a refactor of the OPNSense Login Scanner to handle cookies and magic values robustly, enhanced session information queries, and updated documentation. Major bugs fixed include stabilizing the msfcrawler component by properly initializing the Rinda TupleSpace and handling RequestExpiredErrors, as well as robustness improvements to module searching (default options hash and string-typed terms to prevent encoding issues). An additional feature enables overriding the reported module name for vulnerabilities via report_vuln, improving attribution. These work items reduce false positives, prevent crashes, and improve correlation of vulnerability data, delivering measurable business value in reliability, triage efficiency, and asset attribution.
April 2025 monthly summary for rapid7/metasploit-framework: Focused on strengthening reliability, traceability, and robustness of scanning and module search. Key features delivered include a refactor of the OPNSense Login Scanner to handle cookies and magic values robustly, enhanced session information queries, and updated documentation. Major bugs fixed include stabilizing the msfcrawler component by properly initializing the Rinda TupleSpace and handling RequestExpiredErrors, as well as robustness improvements to module searching (default options hash and string-typed terms to prevent encoding issues). An additional feature enables overriding the reported module name for vulnerabilities via report_vuln, improving attribution. These work items reduce false positives, prevent crashes, and improve correlation of vulnerability data, delivering measurable business value in reliability, triage efficiency, and asset attribution.
March 2025 – Rapid7 Metasploit Framework: Consolidated and delivered three key login-scanner improvements, enhancing credential assessment coverage for gateway devices and strengthening test reliability. Highlights include new pfSense and OPNSense login scanners with CSRF handling and login state management, plus expanded TeamCity login scanner test coverage. These changes improve security assessment capabilities, enable faster detection of weak/default credentials, and increase confidence in scanner reliability across CI pipelines.
March 2025 – Rapid7 Metasploit Framework: Consolidated and delivered three key login-scanner improvements, enhancing credential assessment coverage for gateway devices and strengthening test reliability. Highlights include new pfSense and OPNSense login scanners with CSRF handling and login state management, plus expanded TeamCity login scanner test coverage. These changes improve security assessment capabilities, enable faster detection of weak/default credentials, and increase confidence in scanner reliability across CI pipelines.
December 2024 monthly summary for rapid7/metasploit-framework: Focused on reliability, UX, and data quality. Key features delivered: TeamCity login module improvements; Exploit suggester datastore option filtering. Major bugs fixed: Robust console tab completion initialization; Per-thread RPC token handling. Overall impact: improved login reliability, better developer/ops experience, and cleaner exploit suggestions, enabling more effective security testing workflows. Technologies/skills demonstrated: Thread-local token management, enhanced input handling with readline, improved logging and naming consistency, and datastore filtering.
December 2024 monthly summary for rapid7/metasploit-framework: Focused on reliability, UX, and data quality. Key features delivered: TeamCity login module improvements; Exploit suggester datastore option filtering. Major bugs fixed: Robust console tab completion initialization; Per-thread RPC token handling. Overall impact: improved login reliability, better developer/ops experience, and cleaner exploit suggestions, enabling more effective security testing workflows. Technologies/skills demonstrated: Thread-local token management, enhanced input handling with readline, improved logging and naming consistency, and datastore filtering.
November 2024: Delivered reliability, security, and stability improvements to the TeamCity login workflow in metasploit-framework. Achieved robust login sequences with non-blocking logout, safer data handling, capped retries, and enhanced error handling; centralized cryptography for TeamCity login security with UTF-8 support and tests; and a major codebase consolidation that unifies HTTP interactions, strengthens initialization and error handling, improves SSH cleanup and logging. These changes reduce failure modes, improve data safety, and enhance maintainability and observability, enabling faster, safer iteration on TeamCity integrations.
November 2024: Delivered reliability, security, and stability improvements to the TeamCity login workflow in metasploit-framework. Achieved robust login sequences with non-blocking logout, safer data handling, capped retries, and enhanced error handling; centralized cryptography for TeamCity login security with UTF-8 support and tests; and a major codebase consolidation that unifies HTTP interactions, strengthens initialization and error handling, improves SSH cleanup and logging. These changes reduce failure modes, improve data safety, and enhance maintainability and observability, enabling faster, safer iteration on TeamCity integrations.
Concise monthly summary for 2024-10: Delivered a major security testing capability by adding the JetBrains TeamCity HTTP Login Scanner to rapid7/metasploit-framework. The feature includes authentication handling, session management, and RSA-protected password handling, with improved RSA padding randomness and a dynamic maximum message size for encryption. Authorship metadata was updated to improve traceability and auditing. These changes extend enterprise CI security coverage, improve scanner reliability, and bolster maintainability of the TeamCity component.
Concise monthly summary for 2024-10: Delivered a major security testing capability by adding the JetBrains TeamCity HTTP Login Scanner to rapid7/metasploit-framework. The feature includes authentication handling, session management, and RSA-protected password handling, with improved RSA padding randomness and a dynamic maximum message size for encryption. Authorship metadata was updated to improve traceability and auditing. These changes extend enterprise CI security coverage, improve scanner reliability, and bolster maintainability of the TeamCity component.
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