Critical Thinking - Bug Bounty Podcast Episode 86: The X-Correlation between Frans & RCE - Research Drop
Aug 29, 2024
Frans Rosen, a cybersecurity expert, shares groundbreaking insights from his latest presentation. He discusses X-correlation injections and their effects on server-side vulnerabilities, emphasizing the role of request IDs. Frans delves into fuzz testing techniques, revealing how to uncover hidden software weaknesses, and highlights the complexities of managing cross-origin APIs. Additionally, he explores security challenges related to JSON Web Tokens and logging pipelines, providing practical solutions for developers and security professionals.
AI Snips
Chapters
Transcript
Episode notes
X-Correlation Injection
- X-Correlation IDs/Request IDs are used to track requests across systems.
- Attackers can inject malicious payloads into these headers to exploit server-side contexts.
Identifying Correlation IDs
- Analyze responses, Access-Control-Allow-Headers, and reflections to identify correlation IDs.
- Look for non-UUID validated reflections, especially in payment flows, for potential vulnerabilities.
Fuzzing for Vulnerabilities
- Frans Rosen fuzzed correlation IDs with various characters and a URL decoder.
- He discovered vulnerabilities by triggering errors and observing their locations.