In November 2016 I wrote a post about the iOS WebView Auto Dialer bug specifically in the iOS Twitter and the iOS LinkedIn apps. Last weekend I finally had the time to retest those apps to see if the bug was fixed. Retests in December and January showed the bug was still present (as far as I remember). Both apps are fixed now!
Playing around with this a bit more I discovered a new security warning on iOS. There now seems to be a detection for the case where a website automatically tries to open a TEL URL. The dialog doesn't always appear but when it does you first have to click allow before being presented with the actual Call/Cancel dialog. Neat!
The conclusion seems to be that the bug was fixed and that they added a new detection and warning dialog. Good!
Black Hat USA July 22-27 Las Vegas. BROADPWN: REMOTELY COMPROMISING ANDROID AND IOS VIA A BUG IN BROADCOM'S WI-FI CHIPSETS by Nitay Artenstein. (Program not complete)
SyScan360 May 30-31 Seattle. Exploit iOS 9.x Userland with LLDB JIT by Wei Wang. The wounded android WIFI driver New attack surface in cfg80211 by Hao Chen.
MOSEC June, Shanghai. Revisiting the Kernel Security Enhancements in iOS 10 AND Pwning Apple Watch. (Program still not complete)
Recordings for the first OsmoCon are available here. OsmoCon is, of course, a conference about the OsmoCom projects!
Android O news: will prompt for pin/passcode before enabling developer options, further Android O changes device identifiers and how to access them.
If you are interested in mobile backing Trojans you should follow Lukas Stefanko:
Somebody released the source code of FlexiSpy (mobile phone spyware) to the public. The release notes are here: readme.txt. The download is here: FlexiSpyOmni.zip, collection of all data is here: Source code and binaries of FlexiSpy from the Flexidie dump and a writeup of the dump is here: FlexSpy Application Analysis. I bet we will see more details in the coming weeks!
Does Blackberry give out review samples for the KEYone? I would really like one and give it a try (would post full review here of course!).
All Nokia phones ever made.
ss7 assessment tool
ss7 map testing tool
Fried Apples (slides)
The Galaxy S8's facial scanner can, unsurprisingly, be tricked with a photo (Biometrics are convenience not security)
jtrace - augmented, Android aware strace
Mobile Telephony Threats in Asia (slides)
Security updates in iOS 10.3.1 a lot of webkit and kernel bugs
Pegasus for Android (paper)
3G/4G Intranet Scanning (slides)
Know your community - Stefan Esser
Protection Profile for Mobile Device Fundamentals
CVE-2017-2416 Remote code execution triggered by malformed GIF in ImageIO framework, affecting most iOS/macOS apps (blog post)
Easy 4G/LTE IMSI Catchers for Non-Programmers (paper)
More Android Anti-Debugging Fun
Analysis of the Facebook.app for iOS [v. 87.0] (blog post)
Over The Air: Exploiting Broadcom's Wi-Fi Stack (Part 1)
Over The Air: Exploiting Broadcom's Wi-Fi Stack (Part 2)
Slides for the Android Security Symposium 2017
FemotoCell Hacking (slides)
iOS Kernel Integrity Protection bypass via Tick (FPU) Tock (IRQ)
DexGuard vs. ProGuard (WARNING: post is by a app protection company)
Bose headphones secretly data-mine users if they have the app installed on their phone!
Cellular Provider Record Retention Periods
Attack TrustZone with Rowhammer (slides)
A surprise encounter with a telco APT (slides)
The Shadow over Android Heap exploitation assistance for Android's libc allocator (slides)
Vulnerability Exploitation and Mitigation in Android (slides by Google)
Stetho: A debug bridge for Android applications
Why Banker Bob (still) Can't Get TLS Right: A Security Analysis of TLS in Leading UK Banking Apps (blog post + paper)
Calling JNI Functions with Java Object Arguments from the Command Line (blog post)
Logic Bug Hunting in Chrome on Android (slides)
Redex and Android byteCode optimizer
AppMon is an automated framework for monitoring and tampering system API calls of native apps on macOS, iOS and Android
Android Security Bulletin - April 2017
Android Vendor Test Suite (VTS)
Mobile Security Research - 2017 Q1
Forensics Investigation of Android Phone using Andriller
Using Frida on Android without root
Introducing 'gnirehtet', a reverse tethering tool for Android
Man sues Confide: I wouldn't have spent $7/month if I'd known it was flawed
Who owns your runtime?
Qualcomm Mobile Security Summit 2017 San Diego, May. All talks are on mobile security - super strong lineup!
AppSec EU May 11-12, Belfast. How to steal mobile wallet? - Mobile contactless payments apps attack and defense. Fixing Mobile AppSec: The OWASP Mobile Project.
MOSEC June Shanghai. Pwning Apple Watch. (program not complete yet!)
OffensiveCon is a new security conference in Berlin Germany focused on Offense. No details yet but they chose the right location for sure.
For everybody who didn't make it to the Android Security Symposium, they recorded the talks and the videos are available: here.
Google published a blog post and a detailed report on Android Security in 2016. The report covers everything from patching and update stats to high impact vulnerabilities. People posted a lot of summaries but you should really read it yourself if you work with Android.
Google pulls March security update for Nexus 6, after it breaks SafetyNet and Android Pay. This was pretty interesting, not the fact that they broke SafetyNet but that they broke it for their own devices (Nexus). This happened to some really small manufacturer before and if you have an idea of how SN works on the backend - it is clear what happened.
execute USSD codes in iOS 10.2.xx --bug-Impact: Tapping a tel link in a PDF document could trigger a call without prompting the user #lol— Ravishankar Borgaonk (@raviborgaonkar) March 27, 2017
Android anti-debugging tricks can be patented? This is stupid in so many ways https://t.co/IjXfg45xoN— Bernhard Mueller (@muellerberndt) March 25, 2017
Anti Debugging fun Android Art
PageSwitch an exploit toolkit for the Nintendo switch
Ransomware scammers exploited Safari bug to extort porn-viewing iOS users
Increasing Android app security for freei (slides)
Looking Back at Android Security in 2016 by DuoSecurity
OWASP Mobile - Anti Reversing Checks
Android/Ztorg teardown - It detects the Android SDK emulator, but also emulators from Genymotion, Bluestacks and BuilDroid. It also detects tainted environments. Several of its checks will be difficult to bypass
Owning OnePlus 3/3T with a Malicious Charger
The updated iOS Security Guide now covers iOS 10
iOS 10.3 fixes a large number of Kernel and WebKit bugs
Statistical Deobfuscation for Android (I suppose this is for Dex code only)
Hacking Android Apps with Frida (part 2)
Nexus 5X Owners Say Device Boot-Looping Kills Phones; Getting Runaround From LG
This American Surveillance Tool Helped Russians Spy On Androids And iPhones
Apple cracking down on developers who use SDKs like Rollout to update apps without App Store approval (Apple going after hot-patching frameworks)
Attacking Nexus 9 with Malicious Headphones
GSMA Coordinated Vulnerability Disclosure Program
gdrive-appdata: Tries to fetch the contents of the appdata hidden folder from Google Drive.
Harald Welte about TelcoSecDay 2017 @ Troopers
NDK changes for API level 26
O-MG, the Developer Preview of Android O is here!
Android API Differences Report
Frustrated by robo callers & an AT&T subscriber? Get the AT&T call protect app
Samsung commits to monthly security updates for unlocked US smartphones
Android phone market stats
20 bestselling mobile phones of all time
Android Kernel CVE PoCs
Mobile Malware Masquerades as POS Management App
Judge an Android malware scanner by rednaga.io (@timstrazz and @caleb_fenton)
The Art Of Bootloader Unlocking: Exploiting Samsung S-Boot (video from nullcon talk)
Having fun with Secure Messengers and Android Weari (slides CansecWest 2017)
Pwning the NExus of Every Pixel (slides CanSecWest 2017)
Injecting Metasploit Payloads into Android Applications
Receive FREE SMS online (number in various countries)
TrustZone An Attackers Perspective (slides)
Reverse Engineering Samsung S6 SBOOT - Part I
Letter to the FCC on SS7 Security by Ron Wyden
FCC: Legacy Systems Risk Reductions (it's about ss7)
Black Hat ASIA Singapore March 28-31. FRIED APPLES: JAILBREAK DIY by Alex Hude, Max Bazaliy, Vlad Putin. ANTI-PLUGIN: DON'T LET YOUR APP PLAY AS AN ANDROID PLUGIN by Cong Zheng, Tongbo Luo, Xin Ouyang, Zhi Xu. REMOTELY COMPROMISING IOS VIA WI-FI AND ESCAPING THE SANDBOX by Marco Grassi. 3G/4G INTRANET SCANNING AND ITS APPLICATION ON THE WORMHOLE VULNERABILITY by Guangdong Bai, Zhang Qing. MOBILE-TELEPHONY THREATS IN ASIA by Lion Gu, Marco Balduzzi, Payas Gupta. MASHABLE: MOBILE APPLICATIONS OF SECRET HANDSHAKES OVER BLUETOOTH LE by Yan Michalevsky.
CanSecWest Vancouver Canada, March 15-17. Qidan He : Pwning Nexus of Every Pixel: Chain of Bugs demystified. Logic Bug Hunting in Chrome on Android by Georgi Hershey & Robert Miller.
Zer0Con Seoul, Korea April 13-14. Ian Beer : Through the mach portal.
OsmoCon (Osmocom Conference) 2017 is the first technical conference for Osmocom users, operators and developers! April 21, Berlin. All about Osmocom!
HITB Amsterdam April 13-14. FEMTOCELL HACKING: FROM ZERO TO ZERO DAY by JeongHoon Shin. CAN'T TOUCH THIS: CLONING ANY ANDROID HCE CONTACTLESS CARD by Slawomir Jasek. EXTRACTING ALL YOUR SECRETS: VULNERABILITIES IN ANDROID PASSWORD MANAGERS by Stephan Huber, Steven Artz, Siegfried Rasthofer. HUNTING FOR VULNERABILITIES IN SIGNAL by Markus Vervier.
Opcde Dubai, UAE April 26-27. Practical attacks against Digital Wallet by Loic Falletta.
I took a way too long break again. So many things happen in the world of mobile security every week. I really wish I had more time for this. I also have a bunch of small things I need to put on this blog but I think they are too specific for the news and will likely get their own posts.
Some news from MWC (I didn't attend):
First the BlackBerry KEYone a new Android-based phone with a physical keyboard. Other then the BB Priv the KEYone's keyboard is fix and doesn't slide. Movable parts are really not a good idea, they break way too fast. In my opinion this device looks super solid and likely will be supported longer than the average flagship phone from other manufacturers (data on this would be awesome).
Nokia released 3 new Android phones the 3 (MTK), 5 (QCOM) and 6 (QCOM). The phones seem to run Android N without any modifications or vendor crap. Very low price (230Euro for the 6). The bottom of their website specifically says: You get an experience that's focused and clutter-free, and we'll make sure you keep getting regular updates, so you'll always stay on top of features and security. that is what you should expect in 2017.
The Android Devices Security Patch Status page is an awesome resource to determine if a specific device from a specific vendor has been patched and when the patch was released. From the page: This list is Prepared to Serve as a Quick reference to identify which Device is being actively maintained by the Vendor.. This is super useful, thanks!
Xiaomi launching own SoC for Android phones-upgradable baseband with fake base station detection capabilities. IMSI catchers r threat now ;) pic.twitter.com/S0hzDBIiQd— Ravishankar Borgaonk (@raviborgaonkar) March 2, 2017
Apple 0day is expensive. https://t.co/F1UEUU0s3r— Collin Mulliner (@collinrm) February 22, 2017
MOSEC mobile security conference in June in Shanghai. This seems to be the 3rd year of the conference. There is no schedule yet.
The story of the day Vault 7: CIA Hacking Tools Revealed. Vault 7: CIA Hacking Tools Revealed : iOS Exploit list. Yes, the CIA uses n-day exploits! The Android exploits.
They talk about Android, Defcon, and backdooring your repo? ;-)
Pic of the month:
ENISA: Smartphone Secure Development Guidelines
Android Security Bulletin - March 2017
Android Security Bulletin - February 2017
Vault 7: CIA Hacking Tools Revealed
Multi-BTS with Osmocom and a single UmTRX
Obfuscation-Resilient Privacy Leak Detection for Mobile Apps Through Differential Analysis Paper and Tool
Booting into fastboot mode Instructions for all Nexus devices
TROOPERS17 GSM Network - How about your own SMPP Service?
MaMaDroid: Detecting Android Malware by Building Markov Chains of Behavioral Models paper
Exploiting Android S-Boot: Getting Arbitrary Code Exec in the Samsung Bootloader (1/2)
Android ransomware requires victim to speak unlock code
Hacking Android phone. How deep the rabbit hole goes.
Sunny with a chance of stolen credentials: Malicious weather app found on Google Play 5k installs via Google Play!
iOS keychain items used to persist after app uninstall. As of iOS 10.3 beta 2, deleting app deletes keychain items via @hubert3
SunShine 3.4.27 is out - Bringing unlock support for Droid Turbo on 6.0.x
Cellular re-broadcast over satellite
Identifying Rebroadcast (GSM) also linked in post above
ios-triage - Node.js cli for iOS incident response. Program will extract, process and report (including diffs) on iOS device and app telemetry.
Remote control: Companies blur lines over who owns devices
Shodan.io iOS App
Analysis of iOS.GuiInject Adware Library
Patching and Re-Signing iOS Apps
Lifting the (Hyper) Visor: Bypassing Samsung's Real-Time Kernel Protection
Android ransomware repurposes old dropper techniques
Deobfuscating libMobileGestalt keys
Samsung: Stack buffer overflow in OTP TrustZone trustlet
How easy it would be to hack Trump's phone by my friend Zach aka @quine
iOS 10.2 Yalu Jailbreak Now Supports All 64-bit Devices except iPhone 7 and iPad Air 2
Android bootloader (aboot) parser
Tracking Android Security Update across Devices
SAMSUNG KNOX 1.0 ECRYPTFS KEY GENERATOR WEAK ENCRYPTION
Deep Analysis of Android Rootnik Malware Using Advanced Anti-Debug and Anti-Hook, Part II: Analysis of The Scope of Java
Black market Blackphones get sent a kill message that bricks them
iOS/MacOS kernel memory corruption due to userspace pointer being used as a length
Update on the Fancy Bear Android malware (poprd30.apk)
An Analysis of the Privacy and Security Risks of Android VPN Permission-enabled Apps (paper)
Charger Malware Calls and Raises the Risk on Google Play
Secrets leak in Android apps online service to test APKs
26 security issues in major Android password manager apps
Easy 4G/LTE IMSI Catchers for Non-Programmers (paper)
App-in-the-Middle Attack Bypasses Android for Work Secure Framework
Android FRIDA: Add support for enumerateLoadedClasses() on ART
Android: Inter-process munmap in android.util.MemoryIntArray
Owning a Locked OnePlus 3/3T: Bootloader Vulnerabilities
Binary based obfuscation in a way of CTF kids. We obfuscate your apps, support both iOS/Android.
Android (Huawei) privilege escalation in EMUI keyguard app via loading shellcode in theme pack
The Story of Firefox OS
The European Union Agency for Network and Information Security (ENISA) asked Ioannis Stais, Vincenzo Iozzo, and myself to update their guidelines for secure smartphone app development. The result is not much of an update but an entire rewrite of the guidelines. It was a fun project to do and I think all parties involved in the project are proud of the final result.
The Smartphone Development Guidelines website provides a brief overview of the effort. The actual document can be downloaded here Smartphone_development_Guidelines.pdf
I would like to thank everybody again who helped on the project the project coordinators at ENISA and everybody who reviewed the document and provided feedback!
Recon Brussels Brussels, 27-29 January. Analyzing iOS apps: road from AppStore to security analysis report by Lenar Safin, Yaroslav Alexandrov, Egor Fominykh, Alexander Chernov.
31CON Auckland NZ, 23-24 February. RAVISHANKAR BORGAONKAR (UK): PRIVACY ISSUES IN 4G. PHILIPPE LANGLOIS (FRANCE): something about mobile networks.
Android Security Symposium 2017 Vienna Austria, March. Many interesting talks.
Troopers Heidelberg, Germany. March. Hunting For Vulnerabilities in Signal by Jean-Philippe Aumasson, Markus Vervier. Samsung Pay: Tokenized Numbers, Flaws and Issues by Salvador Mendoza.
TelcoSecDay @ Troopers It's no use crying over spilled 2G,3G,4G - what we need to fix in 5G. Outlook on 5G security from 3GPP perspective. Automated large-scale detection of rogue base stations: A field report. Exploring fraud in telephony networks, an illustration with Over-The-Top Bypass.
Infiltrate Miami, FL. March. Jean-Philippe Aumasson, Markus Vervier: Hunting For Vulnerabilities in Signal. Georgi Geshev, Robert Miller: Logic Bug Hunting in Chrome on Android. Marco Grassi, Liang Chen: Remotely Compromising a Modern iOS Device. Vasilis Tsaousoglou, Patroklos Argyroudis: The Shadow over Android: Heap exploitation assistance for Android's libc allocator. Ralf-Phillip Weinmann: Did I hear a shell popping in your baseband?.
CFPs backdoor story is just bad and will drive users away from a secure messaging app (maybe even the biggest install based of all of them). Zeynep Tufekci wrote an open letter to the Guardian to have them update the story. Moxie also wrote a blog post about these claims. The Guardian should have asked people with the technical expertise for advice before publishing the story.
AT&T 2G network shutdown happened on Dec 31 2016
AndroidXRef is looking for sponsors!
The mobile talks from 33c3 are all totally worth watching (no particular order):
Dissecting modern (3G/4G) cellular modemsPics of the month:
Downgrading iOS: From past to present
Geolocation methods in mobile networks
Shut Up and Take My Money! The Red Pill of N26 Security
Code BROWN in the Air. A systemic update of sensitive information that you sniff from pagers
Samsung Android Security Updates for January
Secure boot and image authentication in mobile tech (white paper)
Practical Android Debugging Via KGDB
We reverse engineered 16k apps, here's what we found (hardcoded secrets mostly) they also have an online tool
Very detailed description of hacking the Kyocera KC-S701(Russian)
LG G3 Arbitrary File Retrieval from Cloud Services
Trojanized Photo App on Google Play Signs Up Users for Premium Services
OnePlus 3/3T Bootloader Vulnerability Allows Changing of SELinux to Permissive Mode in Fastboot
Qualcomm releases whitepaper detailing pointer authentication on ARMv8.3 (whitepaper)
IoT mode fuzzing with OpenBTS
buy a BlackPhone for 120 Euros
Security conferences in 2017
Summary of Critical and Exploitable iOS Vulnerabilities in 2016
Switcher: Android joins the attack-the-router club
Cyanogen's Services Will Be Shutting Down (the commercial part of CyanoGen mode)
V3SPA: An Open Source Tool for Visually Analyzing and Diffing SELinux/SE for Android Security Policies
Project Zero exploit for iOS 10.1.1
OWASP Mobile Security Testing Guide (Work in Progress)
Android Banking Trojan Source Code Leaked Online, Leads to New Variation Right Away
A theme pack got you pwned with system privilege on Huawei's EMUI
Google Rolls Out Instant Apps Feature For Android: Download And Run Apps Without Installing Them
Open source 3GPP LTE library
fastboot oem sha1sum
Automating iOS blackbox security scanning (slides)
Meitu Android App TearDown
Hooking Android System Calls for Pleasure and Benefit
iOS9 iCloud backup retrieval proof of concept
Pixel bootlaoder exploit for reading flash storage
Android Vulnerabilities: Attacking Nexus 6 and 6P Custom Boot Modes
Wap Push bugs in Samsung Android phones
Virulent Android malware returns, gets >2 million downloads on Google Play
HIJACKING WHATSAPP ACCOUNTS USING WHATSAPP WEB
Security Analysis of the Telegram IM (a Master's Thesis)
Android Security Bulletin - January 2017
Classification of Smartphone Users Using Internet Traffic (paper)
LG posts January security bulletin ahead of Google with Android and LG-specific patches
Analysis of multiple vulnerabilities in AirDroid
Android banking Trojan asks victims to send selfies with ID cards
A Whale of a Tale: HummingBad Returns
iOS Dropbear SSH
33c3 Hamburg, Germany 27-30 December. Downgrading iOS: From past to present by tihmstar. A look into the Mobile Messaging Black Box by Roland Schilling and Frieder Steinmetz. Dissecting modern (3G/4G) cellular modems by LaForge and holger. Geoloation methods in mobile networks by Erik.
Shmoocon Washington D.C. January. A Context-Aware Kernel IPC Firewall for Android - David Wu, Sergey Bratus.
Black Hat ASIA March 2017. FRIED APPLES: JAILBREAK DIY by Alex Hude and Max Bazaliy. MASHABLE: MOBILE APPLICATIONS OF SECRET HANDSHAKES OVER BLUETOOTH LE by Yan Michalevsky. REMOTELY COMPROMISING IOS VIA WI-FI AND ESCAPING THE SANDBOX by Marco Grassi.
I had to skip the November update due to a long overdue vacation. Playing with iOS webviews also did cost some time. Writing this blog becomes more and more time consuming since for some parts I would rather spent time on research than writing about other peoples research. Will see next year if I continue doing this or not. I'm doing this since January 2009 so it has been a few years.
Opcde ConferenceSamsung confirms it will render the US Note 7 useless with next update since the owners don't seem to care to return the phones to Samsung even tho they would get a replacement device. This is kind of hilarious.
Browser based iOS 9.3.x jailbreak (64bit only) it has been a while.
Chinese company installed secret backdoor on hundreds of thousands of phones
Here is the BLU R1 blind system command execution via Adups from July of this year - anyone think they care? pic.twitter.com/veUMGD8zSy— Tim Strazzere (@timstrazz) November 22, 2016
Recently the topic of SMS 2FA came up again. While I agree that SMS is not the most secure version of 2FA it is far far better then not providing any 2FA mechanism for your service.
Seems like the right ordering, but when deployment is 98% < 2% < .5% < .01% complaining about SMS security is pretty silly. https://t.co/5ex3naa5a5— Alex Stamos (@alexstamos) December 1, 2016
Oxygen 9.0.3 allows to brute force a passcode for any Windows Phone 8 device from its physical dump!
Android system_server Code Loading Bypass
"Root" via dirtyc0w privilege escalation exploit (automation script) / Android (32 bit) Raw
Practical Attacks Against Privacy and Availability in 4G/LTE Mobile Communication Systems (paper)
JTAGing Mobile Phones (from August)
The limitations of Android N Encryption
The fight against Ghost Push continues
BitUnmap: Attacking Android Ashmem
Saving Data: Reducing the size of App Updates by 65% (looks interesting)
More Than 1 Million Google Accounts Breached by Gooligan
Telstra is switching off their GSM network
Qualcomm has a Bug Bounty now
Nintendo has a Bug Bounty now
Secure Rom extraction on iPhone 6s
Android Security Bulletin - December 2016
HackingTeam back for your Androids, now extra insecure!
SunShine 3.4.18 has been released. Bring Support for Android 7.x.x and latest HTC 10 updates
A detailed security assessment on Android Full Disk Encryption (paper)
BitUnmap: Attacking Android Ashmem
Fuzzing Android OMX (slides)
Anonymous web-based SMS
Mobile Network Codes (MNC) for the international identification plan for public networks and subscriptions (According to Recommendation ITU-T E.212 (09/2016))
Call me maybe: Exploiting iOS WebViews to force automatic FaceTime calls
Android Banking Malware Masquerading as Email App Targets German Banks
Second Chinese Firm in a Week Found Hiding Backdoor in Firmware of Android Devices
Powerful backdoor/rootkit found preinstalled on 3 million Android phones
RAGENTEK ANDROID OTA UPDATE MECHANISM VULNERABLE TO MITM ATTACK
New Reliable Android Kernel Root Exploitation Techniques (slides)
Analysis of iOS.GuiInject Adware Library
Android Security Bulletin - November 2016
HelDroid: Dissect Android Apps Looking for Ransomware Functionalities
Rooting Every Android From Extension To Exploitation by Di Shen (slides)
Mobile Espionage in the Wild Pegasus and Nation-State Level Attacks (slides)
The Android Security Center
Technical Analysis of the Pegasus Exploits on iOS (paper)
Just a place to dump the cdma data I collected while at Defcon 2016
CRiOS: Toward Large-Scale iOS Application Analysis (paper)
Exploring LTE security and protocol exploits with open source software and low-cost software radio by Roger Jover (slides)
Your smartphone is a civil rights issue (TED talk)
Receive SMS Online
Android wear MiTM
*droid: Assessment and Evaluation of Android Application Analysis Tools (paper)
Using Google Fi on an iPhone
iOS WebView auto dialer bug