Downgrade attacks: researchers took over the Windows Update process to make the term “fully patched” meaningless on any Windows machine.
Attackers can downgrade Windows kernel components to bypass security features such as Driver Signature Enforcement and deploy rootkits on fully patched systems.
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Researcher showcases hack against Microsoft Windows Update architecture, turning fixed vulnerabilities into zero-days.
Novel Terrapin attack uses prefix truncation to downgrade the security of SSH channels.
