CVE-2018-6678 in Web Gateway
Summary
by MITRE
Configuration/Environment manipulation vulnerability in the administrative interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to execute arbitrary commands via unspecified vectors.
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Analysis
by VulDB Data Team • 04/25/2023
The CVE-2018-6678 vulnerability represents a critical configuration/environment manipulation flaw within McAfee Web Gateway version 7.8.1.x administrative interface. This vulnerability specifically targets authenticated administrator users who possess administrative privileges within the MWG environment, creating a significant attack surface that could be exploited to gain unauthorized system control. The vulnerability exists in the administrative interface component of the web gateway solution, which serves as the primary management console for configuring and controlling the security policies of the gateway.
The technical flaw manifests through unspecified vectors within the administrative interface that allow authenticated users to manipulate configuration parameters in ways that ultimately enable arbitrary command execution. This type of vulnerability falls under the category of privilege escalation and command injection attacks, where legitimate administrative access is leveraged to bypass normal security controls and execute malicious code at the system level. The unspecified nature of the attack vectors suggests that the vulnerability may be present across multiple configuration manipulation points within the administrative interface, making it particularly dangerous as attackers can potentially identify various exploitation paths. This weakness directly violates the principle of least privilege and represents a failure in input validation and access control mechanisms within the MWG administrative framework.
The operational impact of this vulnerability is severe and multifaceted, as it allows authenticated administrators to execute arbitrary commands on the underlying system, potentially leading to complete system compromise. Attackers who can authenticate as administrators can leverage this vulnerability to install backdoors, modify security policies, exfiltrate sensitive data, or disrupt service availability. The implications extend beyond immediate system compromise to include potential lateral movement within networks, as administrators often have elevated privileges that can be used to access other systems. This vulnerability also poses significant risk to compliance requirements, as it could enable attackers to bypass security controls that organizations rely on for regulatory compliance and audit purposes. The vulnerability's presence in MWG 7.8.1.x indicates a systemic weakness in the software's security architecture that affects organizations relying on this particular version of the web gateway solution.
Organizations affected by CVE-2018-6678 should implement immediate mitigations including applying the vendor-provided security patches and updates as soon as they become available. Network segmentation and least privilege access controls should be enforced to limit administrator access to only necessary systems and functions. Monitoring and logging of administrative activities should be enhanced to detect anomalous behavior that might indicate exploitation attempts. Security teams should conduct thorough vulnerability assessments to identify all instances of the affected MWG versions and ensure proper patch management processes are in place. Additionally, implementing multi-factor authentication for administrative accounts and regular security audits can help reduce the risk of unauthorized access to administrative interfaces. This vulnerability aligns with CWE-74 and CWE-79 categories related to injection flaws and improper input handling, and it maps to ATT&CK techniques involving privilege escalation and command execution within compromised systems. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing robust administrative access controls to prevent exploitation of authenticated privilege escalation vulnerabilities.