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The Hacker News — Cyber Security and Hacking News Website: High Sierra

ex-NSA Hacker Discloses macOS High Sierra Zero-Day Vulnerability

ex-NSA Hacker Discloses macOS High Sierra Zero-Day Vulnerability

August 13, 2018Mohit Kumar
Your Mac computer running the Apple's latest High Sierra operating system can be hacked by tweaking just two lines of code, a researcher demonstrated at the Def Con security conference on Sunday. Patrick Wardle, an ex-NSA hacker and now Chief Research Officer of Digita Security, uncovered a critical zero-day vulnerability in the macOS operating system that could allow a malicious application installed in the targeted system to virtually "click" objects without any user interaction or consent. To know, how dangerous it can go, Wardle explains : "Via a single click, countless security mechanisms may be completely bypassed. Run untrusted app? Click...allowed. Authorize keychain access? Click...allowed. Load 3rd-party kernel extension? Click...allowed. Authorize outgoing network connection? click ...allowed." Wardle described his research into "synthetic" interactions with a user interface (UI) as "The Mouse is Mightier than the Sword,"
Apple macOS High Sierra Bug Exposes Passwords of Encrypted APFS Volumes As Hint

Apple macOS High Sierra Bug Exposes Passwords of Encrypted APFS Volumes As Hint

October 06, 2017Unknown
A severe programming error has been discovered in Apple's latest macOS High Sierra 10.13 that exposes passwords of encrypted Apple File System (APFS) volumes in plain text. Reported by Matheus Mariano, a Brazilian software developer, the vulnerability affects encrypted volumes using APFS wherein the password hint section is showing the actual password in the plain text. Yes, you got that right—your Mac mistakenly reveals the actual password instead of the password hint. In September, Apple released macOS High Sierra 10.13 with APFS (Apple File System) as the default file system for solid-state drives (SSDs) and other all-flash storage devices, promising strong encryption and better performance. Mariano discovered the security issue while he was using the Disk Utility in macOS High Sierra to add a new encrypted APFS volume to a container. When adding a new volume, he was asked to set a password and, optionally, write a hint for it. So, whenever the new volume is mounted, m
Apple macOS High Sierra Exploit Lets Hackers Steal Keychain Passwords in Plaintext

Apple macOS High Sierra Exploit Lets Hackers Steal Keychain Passwords in Plaintext

September 26, 2017Swati Khandelwal
Apple yesterday rolled out a new version of its macOS operating system, dubbed High Sierra 10.13 —a few hours before an ex-NSA hacker publicly disclosed the details of a critical vulnerability that affects High Sierra as well as all earlier versions of macOS. Patrick Wardle, an ex-NSA hacker and now head of research at security firm Synack, found a critical zero-day vulnerability in macOS that could allow any installed application to steal usernames and plaintext passwords of online accounts stored in the Mac Keychain. The macOS Keychain is a built-in password management system that helps Apple users securely store passwords for applications, servers, websites, cryptographic keys and credit card numbers—which can be accessed using only a user-defined master password. Typically no application can access the contents of Keychain unless the user enters the master password. "I discovered a flaw where malicious non-privileged code (or apps) could programmatically access th
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