Google reveals exploit in Windows that gives attackers administrator access


The team of security researchers at Project Zero, the division of Google dedicated to finding software vulnerabilities, warned of a vulnerability in the operating system Windows that would allow attackers to execute malicious code with additional permissions on compromised computers.

Specifically, this zero-day flaw resides in the Windows kernel cryptography driver (cng.sys), the main part of the software, and exposes the device to a “locally accessible attack that can be exploited to scale. privileges ”until you get administrator access.

According to Ben Hawkes, Technical Lead at Project Zero, the security bug (logged as CVE-2020-17087) was actively exploited along with another vulnerability (CVE-2020-15999) present in the browser of Google Chrome, although the latter has already been fixed in version 86.0.4240.111.

Known as a sandbox escape, this exploit took advantage of the two flaws to run malicious software, escape from the secure container of Chrome and subsequently accessing the operating system with privileges, which would allow cybercriminals to steal information from the affected computer.

The security issue affects all versions of Windows, from Windows 7 up to the latest version of Windows 10. It is expected that next Tuesday, November 10, Microsoft will release a security update to solve the vulnerability.


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