CVE-2020-7322 in Endpoint Security
Summary
by MITRE
Information Disclosure Vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2020 Update allows local users to gain access to sensitive information via incorrectly logging of sensitive information in debug logs.
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Analysis
by VulDB Data Team • 09/09/2020
This vulnerability represents a critical information disclosure flaw in McAfee Endpoint Security for Windows versions prior to 10.7.0, specifically affecting the September 2020 update cycle. The issue stems from improper handling of sensitive data within debug logging mechanisms, creating a pathway for local attackers to extract confidential information from system logs. The vulnerability manifests when the security software incorrectly records sensitive operational data during debugging processes, potentially exposing credentials, system configurations, or other privileged information. This type of flaw falls under the category of improper logging practices that can significantly compromise system security posture.
The technical implementation of this vulnerability exploits the logging subsystem within the Endpoint Security framework, where debug information containing sensitive data elements is written to log files without proper sanitization or access controls. Local users with sufficient privileges to read system logs can then access these files and extract potentially valuable information. The flaw demonstrates poor input validation and output handling within the application's logging infrastructure, where sensitive data elements are not properly masked or filtered before being recorded in debug logs. This vulnerability aligns with CWE-209, which addresses information exposure through error handling, and represents a classic case of insufficient logging security controls.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can provide attackers with insights into system configurations, user activities, and potentially authentication mechanisms. Attackers could leverage this information to conduct further attacks, such as privilege escalation or targeted social engineering campaigns. The local nature of this vulnerability means that it requires physical or network access to the compromised system, but once exploited, it can provide persistent access to sensitive data within the debug logging context. This vulnerability affects the broader security ecosystem by weakening the trust model of the endpoint protection platform, potentially exposing the organization to additional attack vectors.
Organizations should immediately implement the vendor-provided patch for McAfee Endpoint Security version 10.7.0 or later to address this vulnerability. System administrators should also review existing debug log configurations to ensure sensitive data is not being logged unnecessarily and implement proper log access controls. The mitigation strategy should include monitoring for unauthorized log file access and implementing least privilege principles for log file permissions. This vulnerability highlights the importance of secure logging practices and proper data handling within security software, aligning with ATT&CK technique T1070.002 for Indicator Removal on Host and T1562.001 for Disable or Modify Tools, as attackers could use this information to evade detection or modify security controls. Security teams should also consider implementing automated log monitoring solutions to detect potential information disclosure events and establish proper incident response procedures for handling such vulnerabilities.