CVE-2018-17243 in OpManager
Summary
by MITRE
Global Search in Zoho ManageEngine OpManager before 12.3 123205 allows SQL Injection.
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Analysis
by VulDB Data Team • 03/25/2020
The vulnerability identified as CVE-2018-17243 represents a critical SQL injection flaw within the Global Search functionality of Zoho ManageEngine OpManager versions prior to 12.3 build 123205. This vulnerability exists in the web application's search processing mechanism where user input is not properly sanitized before being incorporated into database queries. The affected component processes search terms through a global search interface that aggregates results across multiple system modules, making it a high-value target for attackers seeking to compromise the underlying database infrastructure. The vulnerability stems from insufficient input validation and parameterized query construction practices within the application's backend processing logic.
The technical exploitation of this vulnerability occurs when an attacker submits maliciously crafted SQL commands through the global search interface. These commands bypass normal input sanitization measures and are directly concatenated into SQL query strings without proper escaping or parameterization. The flaw falls under CWE-89 which specifically addresses SQL injection vulnerabilities where untrusted data is incorporated into SQL commands without adequate protection mechanisms. Attackers can leverage this weakness to execute arbitrary database commands, potentially gaining unauthorized access to sensitive operational data including user credentials, system configurations, and network monitoring information. The vulnerability is particularly dangerous because the global search functionality typically has elevated privileges to access various database tables across the managed network infrastructure.
The operational impact of CVE-2018-17243 extends beyond simple data theft to encompass complete system compromise and potential lateral movement within the network environment. An attacker who successfully exploits this vulnerability can retrieve, modify, or delete critical system data, potentially disrupting network monitoring operations and exposing sensitive information about the organization's infrastructure. The attack surface is broad as the global search functionality is designed to provide comprehensive system-wide queries, making it an attractive target for adversaries seeking to establish persistence or escalate privileges within the managed environment. This vulnerability aligns with ATT&CK technique T1071.004 which covers application layer protocol traffic inspection and manipulation, as the attack vector involves manipulating the application's search functionality to achieve unauthorized database access.
Organizations affected by this vulnerability should immediately implement the vendor-provided patch for Zoho ManageEngine OpManager version 12.3 build 123205 which addresses the SQL injection flaw through proper input validation and parameterized query construction. Network segmentation and monitoring should be enhanced to detect unusual search patterns that might indicate exploitation attempts. Database access controls should be reviewed and strengthened to limit the privileges of application accounts, implementing the principle of least privilege. Security teams should conduct comprehensive vulnerability assessments of similar search functionality across other managed systems and implement proper input sanitization frameworks. The remediation process should include thorough testing of the patched version to ensure no regression in functionality while maintaining the security enhancements. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection against similar exploitation attempts.