CVE-2018-5342 in Desktop Central
Summary
by MITRE
An issue was discovered in Zoho ManageEngine Desktop Central 10.0.124 and 10.0.184: network services (Desktop Central and PostgreSQL) running with a superuser account.
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Analysis
by VulDB Data Team • 03/25/2020
The vulnerability identified as CVE-2018-5342 affects Zoho ManageEngine Desktop Central versions 10.0.124 and 10.0.184, presenting a critical privilege escalation risk through improper service account configuration. This issue stems from the network services associated with Desktop Central and PostgreSQL running under superuser privileges, creating a fundamental security flaw that violates the principle of least privilege. The configuration allows these services to operate with elevated system permissions that exceed their operational requirements, creating an attack surface that malicious actors can exploit to gain unauthorized access to the underlying operating system.
The technical flaw represents a classic privilege escalation vulnerability that aligns with CWE-250, which addresses execution with unnecessary privileges. When network services operate with superuser accounts, they inherit full system access rights including the ability to modify system files, install malicious software, access sensitive data, and potentially compromise the entire host environment. This configuration bypasses normal operating system security controls and creates a persistent backdoor for attackers who can leverage the elevated privileges to move laterally within the network or escalate their compromise to other systems. The PostgreSQL service component adds additional risk as database services often contain sensitive organizational data and can be exploited to extract or manipulate critical information.
The operational impact of this vulnerability extends beyond immediate privilege escalation, creating cascading security risks that affect the entire enterprise infrastructure. Attackers who gain access to the system through this vulnerability can potentially access confidential data stored in the PostgreSQL database, modify system configurations, install rootkits or other persistent malware, and use the compromised system as a launch point for further attacks against internal network resources. The vulnerability also impacts compliance requirements, as it violates security frameworks such as NIST SP 800-53 and ISO 27001 that mandate proper access control and privilege management. Organizations using affected versions face significant risk of data breaches, regulatory penalties, and operational disruption.
Mitigation strategies for CVE-2018-5342 require immediate administrative action to address the root cause of the privilege escalation vulnerability. The primary remediation involves reconfiguring the Desktop Central and PostgreSQL services to run under dedicated, non-privileged user accounts with minimal required permissions. This approach aligns with the ATT&CK framework's privilege escalation techniques by eliminating the unnecessary high-privilege execution environment. System administrators should create specific service accounts with limited permissions, ensure proper file and registry access controls, and implement regular privilege reviews to maintain compliance with security best practices. Additionally, organizations should conduct comprehensive security assessments to identify any other services running with excessive privileges and implement monitoring solutions to detect anomalous behavior that might indicate exploitation attempts. The vulnerability underscores the importance of following security hardening guidelines and maintaining current software versions to prevent exploitation of known security flaws.