CVE-2018-20173 in OpManager
Summary
by MITRE
Zoho ManageEngine OpManager 12.3 before 123238 allows SQL injection via the getGraphData API.
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Analysis
by VulDB Data Team • 06/25/2024
The vulnerability identified as CVE-2018-20173 affects Zoho ManageEngine OpManager version 12.3 prior to build 123238, representing a critical SQL injection flaw within the getGraphData API endpoint. This vulnerability resides in the application's handling of user-supplied input parameters that are directly incorporated into SQL queries without proper sanitization or parameterization. The affected API endpoint processes graphical data requests and fails to validate or escape input values before executing database operations, creating an avenue for malicious actors to inject arbitrary SQL commands. The vulnerability impacts the database layer of the application where user-provided parameters are concatenated into SQL statements, potentially allowing attackers to manipulate database queries and extract sensitive information.
The technical exploitation of this vulnerability follows standard SQL injection attack patterns where an attacker can manipulate the getGraphData API by crafting malicious input parameters that alter the intended SQL query execution. When the application processes these crafted inputs, the SQL injection occurs at the database level, potentially enabling attackers to perform unauthorized database operations such as data retrieval, modification, or deletion. The vulnerability stems from improper input validation and sanitization practices within the API processing logic, where user-controllable parameters are directly incorporated into database queries without adequate protection mechanisms. This flaw aligns with CWE-89 which specifically addresses SQL injection vulnerabilities, and represents a classic example of insecure data handling in web applications that fail to implement proper parameterized queries or input validation controls.
The operational impact of this vulnerability extends beyond simple data theft to encompass potential system compromise and unauthorized access to sensitive organizational information. Attackers exploiting this vulnerability could gain access to confidential data stored within the OpManager database, including system configurations, user credentials, network information, and operational metrics. The attack surface is particularly concerning given that OpManager is designed for network monitoring and management, meaning that successful exploitation could provide attackers with comprehensive visibility into network infrastructure and potentially enable further lateral movement within the targeted environment. The vulnerability's persistence across multiple versions of the software indicates a fundamental flaw in the application's input handling mechanisms that could affect numerous organizations relying on this monitoring platform.
Organizations affected by this vulnerability should implement immediate mitigations including applying the vendor-provided patch for build 123238 or later, which addresses the SQL injection flaw through proper input validation and parameterized query implementation. Network segmentation and access controls should be enhanced to limit exposure of the affected API endpoints, while monitoring systems should be configured to detect anomalous API usage patterns that might indicate exploitation attempts. Security teams should conduct comprehensive vulnerability assessments to identify all instances of the affected software versions and ensure that proper input sanitization mechanisms are implemented across all API endpoints. Additionally, organizations should review their database access controls and implement principle of least privilege configurations to minimize potential impact should exploitation occur, while maintaining detailed audit logs of database operations for forensic analysis purposes. The vulnerability demonstrates the critical importance of proper input validation and parameterized queries as outlined in the OWASP Top Ten and MITRE ATT&CK framework's command and control techniques, where database injection attacks represent a fundamental threat vector for persistent access and data exfiltration.