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GreatXML bypasses BitLocker via Defender offline scan artifacts, giving SYSTEM shell in Recovery Mode. No patch exists. Any machine that ran an offline scan is vulnerable. On June 10, security researcher Chaotic Eclipse (aka Nightmare Eclipse) published a new working exploit dubbed GreatXML that bypasses BitLocker and opens a command shell with full SYSTEM privileges […]

Bank Info Security 8 months, 2 weeks ago

Securing EMV: 'More Is Less' for Security, Researchers Find

Add-On EMV Features Put Merchants at Risk to High-Charging 'Free Lunch' CrooksVariations in how EMV ecosystem players implement the standard, as well as a bevy of features they've bolted on - transit modes, offline payment restrictions - have been "overloading" the specification and introducing exploitable vulnerabilities, warn a team of researchers.

Trend Micro Research, News and Perspectives 1 year, 10 months ago

Vulnerabilities in Cellular Packet Cores Part IV: Authentication

Our research reveals two significant vulnerabilities in Microsoft Azure Private 5G Core (AP5GC). The first vulnerability (CVE-2024-20685) allows a crafted signaling message to crash the control plane, leading to potential service outages. The second (ZDI-CAN-23960) disconnects and replaces attached base stations, disrupting network operations. While these issues are implementation-specific, their exploitation is made possible by a systemic weakness: the lack of mandatory authentication procedures between base stations and packet-cores.