SB2021092904 - Multiple vulnerabilities in McAfee Agent for Windows

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper Privilege Management (CVE-ID: CVE-2021-31847)

CWE-ID: CWE-269 - Improper Privilege Management

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/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.

The vulnerability exists due to improper privilege management within the installer. A local user can escalate privileges.

2) Untrusted search path (CVE-ID: CVE-2021-31841)

CWE-ID: CWE-426 - Untrusted Search Path

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/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.

The vulnerability exists due to uncontrolled search path. A local user can perform a DLL sideloading attack and gain elevated privileges on the target system.

3) Improper Privilege Management (CVE-ID: CVE-2021-31836)

CWE-ID: CWE-269 - Improper Privilege Management

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

The vulnerability allows a local user to gain access to sensitive information on the system.

The vulnerability exists due to improper privilege management in maconfig. A local user can gain access to sensitive information on the target system.

Remediation

Install update from vendor's website.

References

• https://kc.mcafee.com/corporate/index?page=content&id=SB10369
• https://www.zerodayinitiative.com/advisories/ZDI-21-1104/