CVE-2022-4259 in Guardian and CMC
Summary
by MITRE • 05/04/2023
Due to improper input validation in the Alerts controller, a SQL injection vulnerability in Nozomi Networks Guardian and CMC allows an authenticated attacker to execute arbitrary SQL queries on the DBMS used by the web application.
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Analysis
by VulDB Data Team • 05/04/2023
The vulnerability identified as CVE-2022-4259 represents a critical SQL injection flaw within the Alerts controller of Nozomi Networks Guardian and CMC platforms. This issue stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before incorporating it into database queries. The vulnerability affects organizations utilizing these network security appliances that rely on web-based interfaces for alert management and system monitoring operations.
The technical exploitation of this vulnerability occurs when an authenticated attacker submits malicious input through the Alerts controller interface. Without proper validation, the application directly incorporates this untrusted data into SQL query structures, creating an environment where attackers can manipulate database commands. This flaw falls under the CWE-89 category of SQL Injection, specifically manifesting as an improper input validation issue that allows arbitrary code execution within the database context. The attack vector leverages the authenticated session to bypass standard access controls, making the exploitation more feasible for attackers who have already gained legitimate credentials.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands against the underlying database management system. This could result in complete database compromise, data exfiltration, privilege escalation, or even system-wide destruction depending on the database permissions assigned to the application. Organizations relying on Nozomi Networks Guardian and CMC for critical infrastructure monitoring face significant risk exposure, particularly in environments where these systems manage sensitive operational data or serve as central points for security event correlation. The vulnerability's authenticated nature means that compromise requires legitimate user credentials, but this reduces the attack surface complexity while still maintaining serious security implications.
Mitigation strategies for CVE-2022-4259 should prioritize immediate patch application from Nozomi Networks, as this represents the most effective defense against the specific vulnerability. Organizations should also implement additional security controls including input validation enforcement, parameterized queries, and database access privilege minimization. Network segmentation and monitoring of database access patterns can help detect anomalous behavior indicative of exploitation attempts. The vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1046 for network service scanning, making it a significant concern for security operations centers monitoring for lateral movement and data exfiltration activities. Regular security assessments and penetration testing should be conducted to verify the effectiveness of implemented controls and ensure continued protection against similar vulnerabilities in the broader application ecosystem.