A newly discovered vulnerability in AMD chips allows malicious actors to perform remote code execution (RCE) and privilege escalation in virtual machines.
Cybersecurity researchers from the CISPA Helmholtz Center for Information Security in Germany detailed a vulnerability they named StackWarp, a hardware vulnerability in AMD CPUs that breaks the protections of confidential virtual machines, by manipulating how the processor tracks the stack, and letting a malicious insider or hypervisor change program flow or read sensitive data inside a protected VM.
Read more…
Source: Techradar News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Windows 0-day exploit CVE-2019-1458 used in Operation WizardOpium
December 11, 2019
In November 2019, Kaspersky technologies successfully detected a Google Chrome 0-day exploit that was used in Operation WizardOpium attacks. During our investigation, we discovered that yet another 0-day exploit was used in those attacks. The exploit for Google Chrome embeds a 0-day EoP exploit (CVE-2019-1458) that is used to gain higher privileges on the infected machine as ...
- New Plundervolt attack impacts Intel CPUs
December 10, 2019
Academics from three universities across Europe have disclosed today a new attack that impacts the integrity of data stored inside Intel SGX, a highly-secured area of Intel CPUs. The attack, which researchers have named Plundervolt, exploits the interface through which an operating system can control an Intel processor’s voltage and frequency — the same interface that allows ...
- OpenBSD Hit with Authentication, LPE Bugs
December 5, 2019
An authentication bypass and three local privilege-escalation (LPE) bugs have been uncovered in OpenBSD, the Unix-like open-source operating system known for its security protections. The most severe of the vulnerabilities is the bypass (CVE-2019-19521), which is remotely exploitable. OpenBSD uses BSD authentication, which enables the use of passwords, S/Key challenge-and-response authentication and Yubico YubiKey tokens. In each ...
- New vulnerability lets attackers sniff or hijack VPN connections
December 5, 2019
Academics have disclosed this week a security flaw impacting Linux, Android, macOS, and other Unix-based operating systems that allows an attacker to sniff, hijack, and tamper with VPN-tunneled connections. The vulnerability — tracked as CVE-2019-14899 — resides in the networking stacks of multiple Unix-based operating systems, and more specifically, in how the operating systems reply to ...
- FBI warns about snoopy smart TVs spying on you
December 3, 2019
She laughed. I laughed. The TV laughed. I shot the TV. “Blasted Decepticons!” That’s how a popular meme went after the Transformer movies hit it big. Today, it’s not so funny. A recent FBI report warned smart TV users that hackers can also take control of your unsecured TV. “At the low end of the risk spectrum, they can ...
- Android: New StrandHogg vulnerability is being exploited in the wild
December 2, 2019
Security researchers from Promon, a Norwegian firm specialized in in-app security protections, said they identified a bug in the Android operating system that lets malicious apps hijack legitimate app, and perform malicious operations on their behalf. In a comprehensive report published today, the research team said the vulnerability can be used to trick users into granting intrusive permissions ...