SB2021062411 - Multiple vulnerabilities in Microsoft Edge (Chromium-based)

Description

This security bulletin contains information about 2 vulnerabilities.

1) Security restrictions bypass (CVE-ID: CVE-2021-34475)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: 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:U/U:Green

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

The vulnerability exists due to unspecified error. A remote attacker can trick the victim to visit a specially crafted website and bypass implemented security restrictions.

2) Security features bypass (CVE-ID: CVE-2021-34506)

CWE-ID: CWE-254 - Security Features

CVSSv4: 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:U/U:Green

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

The vulnerability exists due to unspecified error. A remote attacker can trick the victim to visit a specially crafted website and bypass implemented security restrictions.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34475
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34506