Discussion heavy episode this week, talking about KASAN landing on Windows, shuffling gadgets to make ROP harder, and a paper about automatic exploit primitive discovery.
Starting off the week strong we have a CSS injection turned full-read SSRF, and a MyBB exploit chain from XSS to server-side code injection. And we've got a couple auth token disclosures to end off the episode.
Null-dereferences might not be too exploitable on a lot of systems, what about the handling of a null-dereference. We cover a great Project Zero post on the topic, then look at a type confusion in Windows COM, a Nintendo buffer overflow, and several memory corruptions in git, highlighting their unique primitives and potential exploitability.
We've got a cloud focused episode this week, starting with a logging bypass in AWS CloudTrail, a SSH Key injection, and cross-tenant data access in Azure Cognitive Search.
An Apple-focused episode this week, with a trivial iPod Nano BootRom exploit, and a WebKit Use-after-free. We also have a really cool XNU Virutal Memory bug, strictly a race condition and a logic differential between two alternate paths resulting in bypassing copy-on-write protection. We also handle a few questions from chat, how much reverse engineering is necessary for vuln research, how much programming knowledge is required, and a bit about AI's applicability to reverse engineering.
This week kicks off with another look at client-side path traversal attacks, this time with some more case-studies. Then we get into some mobile issues, one a cool desync between DER processors resulting in an iOS privilege escalation. The other a Bundle processing issue in Android that provides an almost use-after-free like primitive but in Java.
Just a few issues this week, but some solid exploitation. A Kernel UAF, IoT, and a bhyve escape.
First episode of the new year, and we've got some cool stuff. Several authentication issues and "class pollution" in Python.
In this episode, we discuss the discovery of a type confusion in Internet Explorer's JScript. We also explore a fun exploit strategy for a low-level memory management bug in the Linux kernel and delve into several issues in Huawei's Secure Monitor that enable code execution in the secure world.
Is Pwn2Own worth it for bug bounty hunters? A handful of trivial command injections, and some awesome WAF bypasses.