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:
- US Census Bureau hacked in January 2020 using Citrix exploit
August 18, 2021
US Census Bureau servers were breached on January 11, 2020, by hackers who exploited a Citrix ADC zero-day vulnerability as the US Office of Inspector General (OIG) disclosed in a recent report. “The purpose of these servers was to provide the Bureau with remote-access capabilities for its enterprise staff to access the production, development, and lab ...
- HolesWarm Malware Exploits Unpatched Windows, Linux Servers
August 18, 2021
By leveraging more than 20 known vulnerabilities in Linux and Windows servers, the HolesWarm cryptominer malware has been able to break into more than 1,000 cloud hosts just since June. The basic cryptominer botnet has been so successful at juggling so many different known vulnerabilities between attacks, researchers at Tencent who first identified HolesWarm refer to ...
- CISA Alert: BadAlloc Vulnerability Affecting BlackBerry QNX RTOS
August 17, 2021
On August 17, 2021, BlackBerry publicly disclosed that its QNX Real Time Operating System (RTOS) is affected by a BadAlloc vulnerability—CVE-2021-22156. BadAlloc is a collection of vulnerabilities affecting multiple RTOSs and supporting libraries. BlackBerry QNX RTOS is ...
- Fortinet slams Rapid7 for disclosing vulnerability before end of 90-day window
August 17, 2021
A dispute broke out on Tuesday after cybersecurity company Rapid7 released a report about a vulnerability in a Fortinet product before the company had time to release a patch addressing the issue. Rapid7 said one of its researchers, William Vu, discovered an OS command injection vulnerability in version 6.3.11 and prior of FortiWeb’s management interface. The ...
- Mandiant Discloses Critical Vulnerability Affecting Millions of IoT Devices
August 17, 2021
Today, Mandiant disclosed a critical risk vulnerability in coordination with the Cybersecurity and Infrastructure Security Agency (“CISA”) that affects millions of IoT devices that use the ThroughTek “Kalay” network. This vulnerability, discovered by researchers on Mandiant’s Red Team in late 2020, would enable adversaries to remotely compromise victim IoT devices, resulting in the ability to ...
- Exchange Servers Under Active Attack via ProxyShell Bugs
August 15, 2021
Researchers’ Microsoft Exchange server honeypots are being actively exploited via ProxyShell: The name of an attack disclosed at Black Hat last week that chains three vulnerabilities to enable unauthenticated attackers to perform remote code execution (RCE) and snag plaintext passwords. In his Black Hat presentation last week, Devcore principal security researcher Orange Tsai said that a ...

