#VU58171 Improperly implemented security check for standard in Google Chromium - CVE-2021-38021

Vulnerability identifier: #VU58171

Vulnerability risk: High

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

CVE-ID: CVE-2021-38021

CWE-ID: CWE-358

Exploitation vector: Network

Exploit availability: No

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

Vendor: Google

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect implementation in referrer in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.

Mitigation
Update to version 96.0.4664.45.

Vulnerable software versions

Google Chromium: 96.0.4664.0 - 96.0.4664.44

---

External links
https://chromereleases.googleblog.com/2021/11/stable-channel-update-for-desktop.html
https://crbug.com/1233375
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38021

---

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.