Episode 64: .NET Remoting, CDN Attack Surface, and Recon vs Main App

Episode 64: In this episode of Critical Thinking - Bug Bounty Podcast we talk about Justin and Joel delve into .NET remoting and how it can be exploited, a recent bypass in the Dom Purify library and some interesting functionality in the Cloudflare CDN-CGI endpoint. They also touch on the importance of collaboration and knowledge sharing, JavaScript Deobfuscation, the value of impactful POCs, hiding XSS payloads with URL path updates.

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Resources:

.NET Remoting

https://code-white.com/blog/leaking-objrefs-to-exploit-http-dotnet-remoting/

https://github.com/codewhitesec/HttpRemotingObjRefLeak

DOM Purify Bug

Cloudflare /cdn-cgi/

https://developers.cloudflare.com/fundamentals/reference/cdn-cgi-endpoint/

https://portswigger.net/research/when-security-features-collide

https://twitter.com/kinugawamasato/status/893404078365069312

https://twitter.com/m4ll0k/status/1770153059496108231

XSSDoctor's writeup on Javascript deobfuscation

renniepak's tweet

Naffy's tweet

Timestamps:

(00:00:00) Introduction

(00:07:15) .Net Remoting

(00:17:29) DOM Purify Bug

(00:25:56) Cloudflare /cdn-cgi/

(00:37:11) Javascript deobfuscation

(00:47:26) renniepak's tweet

(00:55:20) Naffy's tweet