Chinese Hackers Exploit VMware Zero-Day to Backdoor Windows and Linux Systems
The Chinese state-sponsored group known as UNC3886 has been found to exploit a zero-day flaw in VMware ESXi hosts to backdoor Windows and Linux systems.
The VMware Tools authentication bypass vulnerability, tracked as CVE-2023-20867 (CVSS score: 3.9), "enabled the execution of privileged commands across Windows, Linux, and PhotonOS (vCenter) guest VMs without authentication of guest credentials from a compromised ESXi host and no default logging on guest VMs," Mandiant said.
UNC3886 was initially documented by the Google-owned threat intelligence firm in September 2022 as a cyber espionage actor infecting VMware ESXi and vCenter servers with backdoors named VIRTUALPITA and VIRTUALPIE.
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