Tag: spectre v2
5 articles
Citrix NetScaler Flaw Actively Exploited in Targeted Attacks
Researchers have uncovered a new Spectre v2 variant, called Branch Target Reuse (BTR), which can extract sensitive data, including root password hashes, from Intel machines running Linux in just minutes. This attack leverages a clever exploit that takes advantage of a desynchronization in modern CPUs.
Spectre Revives: Researchers Expose New JIT Engine Vulnerability
Meet Branch Target Reuse (BTR), a revived Spectre v2 attack that targets JIT engines, allowing hackers to exploit a major vulnerability in many CPUs that use speculative execution. This breakthrough lets attackers siphon sensitive data, like root password hashes, at alarming rates of up to 5.7 KB/sec.
New Spectre v2 Variant Exploits Linux Systems, Leaks Root Password Hashes
Researchers have uncovered a new Spectre v2 variant, dubbed Branch Target Reuse (BTR), that can exploit Linux systems and leak sensitive data, including root password hashes, in a matter of minutes. This attack can be executed in as little as 3-5 minutes, leaving systems vulnerable to potential breaches.
Researchers Expose TONTOU Attack Bypassing Spectre v2 Fixes
Meet the TONTOU attack, a sneaky new exploit that lets hackers read sensitive data, like hashed passwords, from a system without needing special access - and it can bypass current Spectre v2 defenses. Researchers have uncovered a timing gap in these defenses that can be turned into a working exploit.
Interrupt Injection Attack Bypasses Spectre v2 Defenses on Intel, AMD CPUs
Researchers have uncovered a shocking vulnerability that allows an unprivileged local program to bypass Spectre v2 defenses on Intel and AMD CPUs, leaking kernel memory with alarming speed and accuracy. On an AMD Zen 2 system, this exploit can siphon off sensitive data at a rate of 5.47 bytes per second with near 92% accuracy, making it possible to crack even highly secured files like /etc/shadow.