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Domain: ptsecurity.com
Stories and comments across the archive that link to ptsecurity.com.
Stories · 3
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Some Apple Laptops Shipped With Intel Chips In 'Manufacturing Mode' (zdnet.com)
An anonymous reader writes: Apple has quietly fixed a security issue affecting some laptops that shipped with Intel chips that were mistakenly left configured into "manufacturing mode." The issue was discovered by two security researchers bug hunting for security flaws in Intel's Management Engine. While digging around through the tens of ME configuration options, the two spotted a feature that they believed could lead to problems, if left enabled by accident on Intel chips.
The configuration they eyed was named Manufacturing Mode, and it's an Intel ME option that desktop, server, laptop, or mobile OEMs can enable for Intel chips and use it for testing ME's remote management features. As the name implies, this configuration option should be enabled only on manufacturing lines to enable automated configuration and testing operations, but disabled before shipping the end product. Leaving an Intel ME chip in Manufacturing Mode allows attackers to change ME settings and disable security controls, opening a chip for other attacks.
The two researchers said they only tested Lenovo and Apple laptops for the presence of Intel ME chips in Manufacturing Mode. Other laptops or computers may also be affected. Instructions on how to spot Intel ME chips in Manufacturing Mode and how to disable it are available here. Apple fixed the issue in June, with the release of macOS High Sierra 10.13.5, and Security Update 2018-003 for macOS Sierra and El Capitan. -
Researchers Find a Way To Disable Intel ME Component Courtesy of the NSA (bleepingcomputer.com)
An anonymous reader writes:Researchers from Positive Technologies -- a provider of enterprise security solutions -- have found a way to disable the Intel Management Engine (ME), a much-hated component of Intel CPUs that many have called a secret backdoor, even if Intel advertised it as a "remote PC management" solution. People have been trying for years to find a way to disable the Intel ME component, but have failed all this time. This is because disabling Intel ME crashes computers, as Intel ME is responsible for the initialization, power management, and launch of the main Intel processor.
Positive Technologies experts revealed they discovered a hidden bit inside the firmware code, which when flipped (set to "1") will disable ME after ME has done its job and booted up the main processor. The bit is labelled "reserve_hap" and a nearby comment describes it as "High Assurance Platform (HAP) enable." High Assurance Platform (HAP) is an NSA program that describes a series of rules for running secure computing platforms. Researchers believe Intel has added the ME-disabling bit at the behest of the NSA, who needed a method of disabling ME as a security measure for computers running in highly sensitive environments.
The original submission linked to a comment with more resources on the "Intel CPU backdoor" controversy. -
Zero-Day Bugs In Numerous Modems/Routers Could Compromise Millions of Users (softpedia.com)
An anonymous reader writes: Researchers have discovered a large number of zero-day flaws in 8 routers/modems from 4 manufacturers (ZTE, Huawei, Gemtek, Quanta) that would allow attackers to build a huge botnet by leveraging just a few exploits. Vulnerabilities include remote code execution, firmware rewrites, XSS, and CSRF. All these allow attackers to intercept both HTTP and HTTPS Web traffic, infect computers beyond the modem, intercept SMS messages, and detect the modem's geographical location. After six months, manufacturers have failed to fix the issues.