![]() … The Spectre bug is a hardware design flaw … which won a Pwnie Award in 2018 was considered a milestone moment in the evolution and history of the modern CPU: … Along with the Meltdown bug, effectively forced CPU vendors to rethink their approach to designing processors. … They are most prone to skip applying mitigations due to a more noticeable decrease in system performance after the patch.Īnd Catalin Cimpanu calls this the Last “patch now” warning: the first time a working exploit capable of doing actual damage has entered the public domain. Those running older OS versions on older silicon (2015-era PCs with Haswell or older Intel processors) are probably the most exposed to Spectre attacks. The exploit also allows dumping Kerberos tickets that can be used … for local privilege escalation and lateral movement on Windows systems. Unprivileged users can use the exploits to dump LM/NT hashes on Windows systems and the Linux /etc/shadow file from the targeted devices' kernel memory. Security researcher Julien Voisin … found the two working Linux and Windows exploits on the online VirusTotal malware analysis platform. impact many modern processor models with support for speculative execution and branch prediction made by Intel, AMD, and ARM affects major operating systems, including Windows, Linux, macOS, Android, and ChromeOS. What’s the craic? Sergiu Gatlan reports- Spectre exploits found on VirusTotal: Spectre (CVE-2017-5753) side-channel attacks … can be used by attackers to steal sensitive data, including passwords, documents, and any other data available in privileged memory. Your humble blogwatcher curated these bloggy bits for your entertainment. In this week’s Security Blogwatch, we learn the lessons, regardless. We’ve always feared they’d find a practical exploit, allowing them to, say, steal secrets from kernel memory-passwords, private keys, tokens, etc.Įarlier this week, we woke up to headlines screaming about a pair of “weaponized” exploits discovered on VirusTotal: one for Windows, and one for Linux.īut all might not be as it seems. Remember the Spectre side-channel info-disclosure bug? Hackers do.
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