SB2020051229 - Multiple vulnerabilities in Microsoft Edge

Description

This security bulletin contains information about 2 vulnerabilities.

1) Spoofing attack (CVE-ID: CVE-2020-1059)

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to the Microsoft Edge does not properly parse HTTP content. A remote attacker can trick a victim to visit a malicious webpage and spoof page content.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-1056)

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 escalate privileges on the system.

The vulnerability exists due to the Microsoft Edge does not properly enforce cross-domain policies. A remote attacker can trick a victim into clicking a malicious link and gain access information from one domain and inject it into another domain.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1059
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1056