Posts in "iOS"

Jailbreak versus Compromise…

We see a lot of confusion in the market about precisely what it means to jailbreak a device–and that confusion could lead to serious problems, especially regarding a hacker performing a jailbreak to attack a device. The security industry is notoriously full of acronyms, buzzwords and generally opaque jargon. Here at Zimperium, we try to keep … Read More

Zimperium zLabs iOS Security Advisories

As part of zLab’s platform research team, I’ve tried to investigate an area of the kernel that wasn’t thoroughly researched before.  After digging into some of Apple’s closed-source kernel modules, one code chunk led to another and I’ve noticed a little-known module, which I’ve never seen before, called AppleAVE. AppleAVE was written neglecting basic security fundamentals, to the extent that the … Read More

Zero Packet Inspection

Introduction In this blogpost I describe the history of z9, our detection engine. I will show its performance over reference data sets commonly used in the machine learning community. I’ll then describe how we apply it to detect networks attacks without any type of packet inspection. Eventually, we encourage you to participate by helping us gather and validate performance data from … Read More

NDAY-2017-0101: iCloud Information Leak

By: Zuk Avraham Follow Zuk Avraham (@ihackbanme) Nicolas Trippar Follow Nicolas Trippar (@ntrippar) zNID: NDAY-2017-0101 CVE: Unknown Type: Information Disclosure Platform: iOS < 10.3 Device type: iPhone, iPod iOS bulletin: https://support.apple.com/en-us/HT207617 Public release date: 25th of May, 2017 Credit: Anonymous Download Exploit (password zimperium_ndays) Vulnerability Details An XPC service com.apple.coreservices.appleid.authentication can be accessed by any application on iOS … Read More