#VU53556 Permissions, Privileges, and Access Controls in Google Chrome - CVE-2021-30533

Vulnerability identifier: #VU53556

Vulnerability risk: Medium

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2021-30533

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Google Chrome
Client/Desktop applications / Web browsers

Vendor: Google

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient policy enforcement in PopupBlocker in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and gain access to sensitive information.

Mitigation
Update to version 91.0.4472.77.

Vulnerable software versions

Google Chrome: 88.0.4324.190 - 90.0.4430.212

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External links
https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html
https://crbug.com/1145553

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.