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VMware Patches VM Escape Flaw Exploited at Geekpwn Occasion

By Ryan Naraine on December 13, 2022

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Virtualization know-how large VMware on Tuesday shipped pressing updates to repair a trio of safety issues in a number of software program merchandise, together with a digital machine escape bug exploited on the GeekPwn 2022 hacking problem.

The VM escape flaw, documented as CVE-2022-31705, was exploited by Ant Safety researcher Yuhao Jiang on programs working absolutely patched VMware Fusion, ESXi and Workstation merchandise.  

The exploit took the highest prize at Geekpwn, a hacking contest run by China-based Tencent Eager Safety Lab.

In a safety bulletin issued Tuesday, VMWare slapped a CVSS severity ranking of 9.3/10 and warned {that a} malicious actor with native administrative privileges on a digital machine could exploit this difficulty to execute code because the digital machine’s VMX course of working on the host

“On ESXi, the exploitation is contained inside the VMX sandbox whereas, on Workstation and Fusion, this will likely result in code execution on the machine the place Workstation or Fusion is put in,” VMware added.

[ Read: VMware Confirms Workspace One Exploits in the Wild ]

VMware documented the bug as a heap out-of-bounds write vulnerability within the USB 2.zero controller (EHCI).

The corporate additionally launched fixes cowl a pair of command injection and listing traversal bugs affecting the VMware vRealize Community Perception (vRNI) product.

“[The] vRealize Community Perception (vRNI) accommodates a command injection vulnerability current within the vRNI REST API. VMware has evaluated the severity of this difficulty to be within the important severity vary with a most CVSSv3 base rating of 9.8,” the corporate mentioned in a critical-severity advisory.

“A malicious actor with community entry to the vRNI REST API can execute instructions with out authentication,” VMware added.

Associated: NSA Outs Chinese language Hackers Exploiting Citrix Zero-Day

Associated: Exploit Code Revealed for Essential VMware Safety Flaw

Associated: Fortinet Ships Emergency Patch for Already-Exploited VPN Flaw

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