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:
- New Mirai Variant Targets WebSVN Command Injection Vulnerability (CVE-2021-32305)
August 30, 2021
Unit 42 researchers have observed exploits in the wild for a recently disclosed command injection vulnerability affecting WebSVN, an open-source web application for browsing source code. The critical command injection vulnerability was discovered and patched in May 2021. A proof of concept was released and within a week, on June 26, 2021, attackers exploited the ...
- Microsoft Breaks Silence on Barrage of ProxyShell Attacks
August 26, 2021
Microsoft has broken its silence on the recent barrage of attacks on several ProxyShell vulnerabilities in that were highlighted by a researcher at Black Hat earlier this month. The company released an advisory late Wednesday letting customers know that threat actors may use unpatched Exchange servers “to deploy ransomware or conduct other post-exploitation activities” and urging ...
- Cisco Issues Critical Fixes for High-End Nexus Gear
August 25, 2021
Cisco Systems released six security patches tied to its high-end 9000 series networking gear ranging in importance from critical, high and medium severity. The most serious of the bugs patched by Cisco (rated 9.1 out of 10) could allow a remote and unauthenticated adversary to read or write arbitrary files on to an application protocol interface ...
- Critical F5 BIG-IP bug impacts customers in sensitive sectors
August 25, 2021
BIG-IP application services company F5 has fixed more than a dozen high-severity vulnerabilities in its networking device, one of them being elevated to critical severity under specific conditions. The issues are part of this month’s delivery of security updates, which addresses almost 30 vulnerabilities for multiple F5 devices.. Of the thirteen high-severity flaws that F5 fixed, one ...
- APT41 Resurfaces as Earth Baku With New Cyberespionage Campaign
August 24, 2021
Trend Micro researchers have uncovered a cyberespionage campaign being perpetrated by Earth Baku, an advanced persistent threat (APT) group with a known history of carrying out cyberattacks under the alias APT41. This is not the group’s first foray into cyberespionage, and its long list of past cybercrimes also includes ransomware and cryptocurrency mining attacks. Earth Baku ...
- Attackers Actively Exploiting Realtek SDK Flaws
August 23, 2021
Threat actors zeroing in on command injection vulnerabilities reported in Realtek chipsets just days after multiple flaws were discovered in the software developers kits (SDK) deployed across at least 65 separate vendors. On Aug. 16 multiple Realtek vulnerabilities were disclosed by IoT Inspector Research Lab. It took about 48 hours for attackers to start trying to ...

