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Credential Leak Intelligence | Elastic Leak Searcher
Hi everyone, hope you are well. Initially, I would like to extend my sincere wishes for Eid al-Adha to all who are celebrating. Over the past few months, I have been actively exploring various cybersecurity tools, educational materials, and technical resources across platforms such as X, LinkedIn, and particularly GitHub. Around eight months ago, shortly after I was accepted as an intern, I had the opportunity to participate in a penetration testing engagement targeting a large-scale corporate infrastructure. As long as I started to black box web application tests, our director shared a detailed document outlining historical data breaches associated with the target organization. Following this, we were instructed to analyze the leaked credential sets across multiple domains linked to the organization. Due to my lack of knowledge on real-world penetration testing experience, I began by focusing specifically on the data leak document shared by our director. Interestingly, I was able to identify several working url:username:password combinations that provided access to certain assets across a variety of domains. Despite a lot of leaked credentials, the overall impact on our black-box assessment remained minimal, as most of these domains lacked sufficient functionality to present a viable attack surface.
Finally, our team proceeded to prepare for a local area network assessment within the infrastructure of the client organization. During our internal testing phase, which focused on web applications hosted on the local area…
