Vulnerability identifier: #VU29883

Vulnerability risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-6516

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: Yes

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 improper access restrictions in CORS. A remote attacker can create a specially crafted web page, trick the victim into visiting it, bypass implemented security restrictions and gain unauthorized access to sensitive information or manipulate data.

Mitigation
Update to version 84.0.4147.89.

Vulnerable software versions

Google Chrome: 80.0.3987.163 - 83.0.4103.116

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External links
http://chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html
http://crbug.com/1092449

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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. However, proof of concept for this vulnerability is available.