ZecOps Research Team

In the past few years XNU had few vulns in a newly added/changed code areas and in the content filter area so it is no surprise that the combination of the newly added code and complex areas (content-filter) alongside with a funny comment caught our attention.

Introduction Previous SMBleedingGhost write-ups:  Part I Part II Part III (this) In the previous part of the series, SMBleedingGhost Writeup Part II: Unauthenticated Memory Read

Introduction In our previous blog post, we demonstrated how the SMBGhost bug (CVE-2020-0796) can be exploited for local privilege escalation. A brief reminder: CVE-2020-0796, also

TL;DR While looking at the vulnerable function of SMBGhost, we discovered another vulnerability: SMBleed (CVE-2020-1206). SMBleed allows to leak kernel memory remotely. Combined with SMBGhost,

Summary and TL;DR Further to Apple’s patch of the MailDemon vulnerability (see our blog here), ZecOps Research Team has analyzed and compared the MailDemon patches

Impact & Key Details (TL;DR) Demonstrate a way to do a basic heap spray We were able to use this technique to verify that this