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Dark Reading
The manufacturer is working to fix a vulnerability — similar to a previous problem in Lenovo laptops — that allows threat actors to modify or disable Secure Boot settings to load malware.
Graham Cluley
PC manufacturer Lenovo has been forced to push out a security update to more than two dozen of its laptop models, following the discovery of high severity vulnerabilities that could be exploited by malicious hackers. Security researchers at ESET discovered flaws in 25 of its laptop models - including IdeaPads, Slims, and ThinkBooks - that could be used to disable the UEFI Secure Boot process. Read more in my article on the Tripwire State of Security blog.
The Hacker News
PC maker Lenovo has addressed yet another set of three shortcomings in the Unified Extensible Firmware Interface (UEFI) firmware affecting several Yoga, IdeaPad, and ThinkBook devices. "The vulnerabilities allow disabling UEFI Secure Boot or restoring factory default Secure Boot databases (incl. dbx): all simply from an OS," Slovak cybersecurity firm ESET explained in a series of tweets. UEFI
Bleeping Computer
Windows users who have installed a new KB5012170 security update for Secure Boot have encountered various issues, ranging from boots failing with BitLocker Recovery prompts to performance issues. [...]
Dark Reading
Security features to come include a TPM-like security processor for protecting artifacts that a computer uses during the secure boot-up process, as well as a control for blocking unsigned and untrusted apps.