SB2020051233 - Multiple vulnerabilities in Microsoft Windows Error Reporting (WER)

Description

This security bulletin contains information about 3 vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-1021)

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

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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in the Windows Error Reporting (WER) when WER handles and executes files. A local user can run a specially crafted application and gain elevated privileges on the target system.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-1082)

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

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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in the Windows Error Reporting (WER) when WER handles and executes files. A local user can run a specially crafted application and gain elevated privileges on the target system.

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-1088)

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

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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in the Windows Error Reporting (WER) when WER handles and executes files. A local user can run a specially crafted application and gain elevated privileges on the target system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1021
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1082
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1088