SB2021021612 - Multiple vulnerabilities in McAfee Endpoint Security (ENS)

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Main Vulnerability Database SB2021021612

SB2021021612 - Multiple vulnerabilities in McAfee Endpoint Security (ENS)

Published: February 16, 2021

Security Bulletin ID SB2021021612
CSH Severity
Low
Patch available
NO
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Improper Privilege Management (CVE-ID: CVE-2021-23880)

CWE-ID: CWE-269 - Improper Privilege Management

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

The vulnerability exists due to improper privilege management. A local administrator can perform an uninstallation of the anti-malware engine via the running of a specific command with the correct parameters.


2) Cleartext storage of sensitive information (CVE-ID: CVE-2021-23878)

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/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 clear text storage of sensitive Information in memory. A local user can view ENS settings and credentials.


3) Improper Privilege Management (CVE-ID: CVE-2021-23882)

CWE-ID: CWE-269 - Improper Privilege Management

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


The vulnerability allows a remote user to escalate privileges.

The vulnerability exists due to improper privilege management. A remote administrator can prevent the installation of some ENS files by placing carefully crafted files where ENS will be installed.


4) NULL pointer dereference (CVE-ID: CVE-2021-23883)

CWE-ID: CWE-476 - NULL Pointer Dereference

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


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A local administrator can trigger denial of service conditions via a specific system call which is not handled correctly.


5) Stored cross-site scripting (CVE-ID: CVE-2021-23881)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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


The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in ePO extension. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References