Rebuilding ROADRecon for the Modern Entra Environment

TL;DR

ROADRecon is adapting to Microsoft Graph API changes for continued Azure security assessment.

Transcript

this talk is brought to you by Run Reveal i want to introduce Tom with a talk titled Rebuilding Road Recon for the Modern Entra Environment give it up for Tom [Applause] all right are we working yes okay hi everyone thanks for coming today um so yeah as just introduced we're going to be talking about rebuilding Road Recon for the modern entra envir... Read More

Key Insights

• ROADRecon, a tool for Azure AD enumeration, faces challenges due to the deprecation of Azure AD Graph API, necessitating adaptation to Microsoft Graph API.
• Understanding OAuth implementation in Entra is crucial for security professionals, particularly in leveraging first-party applications and pre-consented permissions.
• The transition from Azure AD Graph to Microsoft Graph impacts both offensive and defensive security strategies, requiring new approaches to Azure estate assessments.
• Undocumented APIs like the Ibiza API offer alternative methods for data enumeration without logging, enhancing reconnaissance capabilities.
• While Ibiza API usage isn't logged, it may be deprecated in the future, similar to Azure AD Graph, necessitating reliance on Microsoft Graph for stability.
• Detection strategies for tools like ROADRecon involve analyzing user agents, anomalous requests, and network locations, though these can be circumvented.
• Defense in depth, involving comprehensive telemetry and strong conditional access policies, is essential for mitigating API misuse.
• The enhanced ROADRecon tool now supports Microsoft Graph API, with ongoing work to integrate Ibiza API for stealthier operations.

Questions & Answers

Q: What is the main challenge faced by ROADRecon due to API changes?

The main challenge faced by ROADRecon is the deprecation of the Azure AD Graph API, which necessitates adapting the tool to use the Microsoft Graph API. This transition impacts both offensive and defensive security strategies, requiring new approaches to Azure estate assessments.

Q: How does understanding OAuth in Entra benefit security professionals?

Understanding OAuth in Entra is crucial for security professionals because it enables them to leverage first-party applications and pre-consented permissions for offensive security purposes. This knowledge helps in bypassing security protections and gaining access to necessary resources within Azure environments.

Q: What are the advantages of using undocumented APIs like the Ibiza API?

Undocumented APIs like the Ibiza API offer advantages such as unlogged data enumeration, enhancing reconnaissance capabilities. These APIs provide an equivalent method for fetching tenant information without being detected, making them valuable for stealthier operations in security assessments.

Q: What are some detection strategies for tools like ROADRecon?

Detection strategies for tools like ROADRecon involve analyzing user agents, excessive anomalous requests, and network locations. These strategies aim to identify unusual API usage patterns. However, they can be circumvented, making defense in depth and comprehensive telemetry crucial for effective detection.

Q: Why is defense in depth important for mitigating API misuse?

Defense in depth is important for mitigating API misuse because it involves comprehensive telemetry and strong conditional access policies, which help in detecting and preventing unauthorized API usage. This layered security approach ensures that multiple detection and prevention mechanisms are in place to protect against malicious activities.

Q: How does the transition to Microsoft Graph API affect ROADRecon's capabilities?

The transition to Microsoft Graph API affects ROADRecon's capabilities by requiring the tool to adapt to new API structures and permissions. While this transition ensures continued operation, it also introduces challenges in maintaining the same level of data access and enumeration capabilities previously available with Azure AD Graph API.

Q: What are the potential future implications of using the Ibiza API?

The potential future implications of using the Ibiza API include the risk of deprecation, similar to Azure AD Graph API. While it currently offers stealthier operations due to unlogged usage, its reliance on undocumented features means it may not be a stable long-term solution, necessitating a fallback on Microsoft Graph API.

Q: What enhancements have been made to ROADRecon with the new API integration?

Enhancements made to ROADRecon with the new API integration include support for Microsoft Graph API, ensuring continued operation despite Azure AD Graph deprecation. The tool now also explores the use of undocumented APIs like the Ibiza API for stealthier operations, although this integration is still a work in progress.

Summary & Key Takeaways

• ROADRecon is adapting to the deprecation of Azure AD Graph API by integrating Microsoft Graph API, ensuring continued Azure security assessments. Understanding OAuth in Entra and first-party applications is crucial for leveraging pre-consented permissions.

• Undocumented APIs like the Ibiza API offer alternative, unlogged methods for data enumeration, enhancing reconnaissance capabilities. However, these APIs may be deprecated in the future, similar to Azure AD Graph, requiring reliance on Microsoft Graph for stability.

• Detection strategies for tools like ROADRecon involve analyzing user agents, anomalous requests, and network locations. Defense in depth, involving comprehensive telemetry and strong conditional access policies, is essential for mitigating API misuse.