#VU53036 Improperly implemented security check for standard in Google Chrome - CVE-2021-30507

Vulnerability identifier: #VU53036

Vulnerability risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-30507

CWE-ID: CWE-358

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 compromise the affected system.

The vulnerability exists due to incorrect implementation in Offline in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.

Mitigation
Update to version 90.0.4430.212.

Vulnerable software versions

Google Chrome: 88.0.4324.182 - 90.0.4430.93

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External links
https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop.html
https://crbug.com/1178202

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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?

No. We are not aware of malware exploiting this vulnerability.