CVE-2017-2324 in NorthStar Controller Application
Summary
by MITRE
A command injection vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow a network-based malicious attacker to cause a denial of service condition.
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Analysis
by VulDB Data Team • 04/24/2017
The vulnerability identified as CVE-2017-2324 represents a critical command injection flaw within the Juniper Networks NorthStar Controller Application, a sophisticated network management platform designed for automated network control and orchestration. This vulnerability specifically affects versions prior to 2.1.0 Service Pack 1, indicating that the flaw existed in the core command processing mechanisms of the application's network controller functionality. The NorthStar Controller serves as a central management point for Juniper's routing and switching infrastructure, making this vulnerability particularly dangerous as it could potentially compromise entire network domains under management.
The technical nature of this command injection vulnerability stems from insufficient input validation and sanitization within the application's command execution pathways. Attackers can exploit this weakness by injecting malicious commands through network-based attacks that target the controller's input processing mechanisms. The vulnerability allows an unauthenticated remote attacker to craft specially formatted inputs that bypass normal security controls and execute arbitrary commands on the affected system. This type of flaw falls under the Common Weakness Enumeration category of CWE-77, which specifically addresses command injection vulnerabilities where untrusted data is incorporated into system commands without proper validation or sanitization.
The operational impact of CVE-2017-2324 extends beyond simple denial of service conditions, as command injection vulnerabilities typically provide attackers with extensive control over affected systems. In the context of a network controller like NorthStar, successful exploitation could enable attackers to gain unauthorized access to network configuration data, manipulate routing decisions, or execute arbitrary code with elevated privileges. The vulnerability's network-based attack surface means that attackers do not require physical access or credentials to exploit the flaw, making it particularly dangerous in enterprise environments where network controllers are often exposed to external threats. This aligns with ATT&CK framework technique T1059, which covers command and scripting interpreter, as the vulnerability enables attackers to execute commands on the target system.
The implications for network security are severe given that the NorthStar Controller typically manages critical network infrastructure components including routers, switches, and other network devices. An attacker who successfully exploits this vulnerability could potentially disrupt network operations, redirect traffic, or gain access to sensitive network information. The vulnerability's potential for remote code execution and denial of service makes it a prime target for both opportunistic attacks and more sophisticated threat actors targeting network infrastructure. Organizations utilizing Juniper NorthStar Controller applications should prioritize immediate remediation through the available service pack updates that address this specific command injection vulnerability. The attack surface for this vulnerability includes all network-based interfaces exposed by the NorthStar Controller, making comprehensive network monitoring and access control measures essential for mitigating potential exploitation attempts.