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Rewterz Threat Advisory – Google ChromeOS Code Execution Vulnerability

Severity

High

Analysis Summary

Google ChromeOS could allow a local attacker to execute arbitrary code on the system, caused by a missing path restriction flaw in the arc-obb-mounter function. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code in the context of the “mount-obb” helper. A proof of concept is present for the exploitability of the bug.

Impact

  • Remote Code Execution
  • Gain Access

Affected Vendors

Google

Affected Products

  • Google Chrome OS 90.0

Remediation

Upgrade to the latest version of Chrome OS (90.0.4430.86 or later), available from the Google Chrome Website.