Summary A local user may be able to cause unexpected system termination or read kernel memory. Details In the function IOHIDEventServiceFastPathUserClient::getSharedMemorySize, the ClientObject (Offset 0xE0 of the user client) is given to a function which assumes it is initialised (It should be initialised via external method 0 — IOHIDEventServiceFastPathUserClient::_open). Calling […]
A new WhatsApp vulnerability has attracted the attention of the press and security professionals around the world. Zimperium zLabs will be creating a detailed blog soon, but we wanted to provide our readers with preliminary information now. What follows is a quick summary of the vulnerability. It has been rumored […]
Nicolás Chiaraviglio (@chiconara) We recently blogged about attacks perpetrated at WiFi networks in Barcelona before and during the 2019 Mobile World Congress (MWC). We found an astonishing amount: estimating more than 7,000 threats in less than four days. Furthermore, 25 percent of those threats were detected in hotels, and of those, 70 percent […]
Analysis & Post By: Alex Calleja (@alximw) Matteo Favaro (@fvrmatteo) Advertising and click fraud campaigns are one of the most common mobile malware-based monetization techniques. Although they are considered a lawful income source in most app markets, they can put the user’s privacy at risk and even cause economic damage. Once […]
Nicolás Chiaraviglio (@chiconara) (This post is a follow up of an earlier blog post) Last week, we released a blog warning about how hackers leverage massive events like the Mobile World Congress (MWC) to attack high profile corporates to steal company data. We showed the network attacks we detected last year in Barcelona, […]
Nicolás Chiaraviglio (@chiconara) The GSMA Mobile World Congress, taking place every year in Barcelona, is undoubtedly the most important event for the mobile industry – with an average attendance of more than 100k people each year. Every important company is represented, with salespeople and high ranking executives taking the chance to […]
This proof-of-concept (PoC) is released for educational purposes and evaluation by researchers, and should not be used in any unintended way. Furthermore, this PoC and any other related material has been published only after disclosing it to Xiaomi Researcher: Rani Idan (@RaniXCH) **UPDATE: Subsequent to the initial disclosure/posting, zLabs […]
Researcher: Ori Karliner (@oriHCX) Following our blog from last month, this blog will cover the technical details of our findings. If you suspect that any of your devices are affected by these vulnerabilities and want our assessment, contact us at freertos@zimperium.com. General information Before we dive into the vulnerabilities, there […]
Researchers: Adam Donenfeld (@doadam) Relevant Operating Systems: iOS, tvOS and watchOS CVE: CVE-2018-4109 As a part of zLabs platform research team (and as a researcher in general), I often find myself wandering in IDA, reversing random pieces of code. In this blog post, I’m going to show a […]
As part of our platform research in Zimperium zLabs, I have recently discovered a vulnerability in a privileged Android service called MediaCasService and reported it to Google. Google designated it as CVE-2018-9539 and patched it in the November security update (2018-11-01 patch level). In this blog post, I will describe […]