CVE-2017-2319 in NorthStar Controller Application
Summary
by MITRE
A vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow a malicious attacker to compromise the systems confidentiality or integrity without authentication, leading to managed systems being compromised or services being denied to authentic end users and systems as a result.
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Analysis
by VulDB Data Team • 04/24/2017
The vulnerability identified as CVE-2017-2319 represents a critical security flaw within Juniper Networks NorthStar Controller Application, specifically affecting versions prior to 2.1.0 Service Pack 1. This controller application serves as a centralized management platform for network infrastructure, making it a prime target for attackers seeking to compromise network operations. The vulnerability stems from insufficient authentication mechanisms that allow malicious actors to gain unauthorized access to system resources, potentially enabling them to manipulate network configurations and data integrity.
This security weakness manifests as a privilege escalation vulnerability that operates without requiring any authentication credentials from the attacker. The flaw enables unauthorized access to the NorthStar Controller's administrative functions, which typically would require legitimate authentication. The vulnerability is particularly concerning because it directly impacts the confidentiality and integrity of managed systems, allowing attackers to potentially modify network configurations, access sensitive data, or disrupt services. The attack vector leverages weak access controls that permit unauthenticated users to perform administrative operations, essentially bypassing the intended security architecture of the controller application.
The operational impact of CVE-2017-2319 extends beyond simple unauthorized access, potentially leading to complete system compromise of network infrastructure managed by the NorthStar Controller. Attackers could manipulate routing protocols, alter network policies, or disable critical services, resulting in service denial to legitimate users and systems. The vulnerability's implications are particularly severe in enterprise environments where network controllers manage large-scale infrastructure, as a successful exploitation could affect thousands of devices and users across the network. This type of vulnerability directly aligns with CWE-284, which addresses improper access control issues, and represents a classic example of how weak authentication mechanisms can lead to complete system compromise.
From a threat modeling perspective, this vulnerability maps to several ATT&CK techniques including T1078 for valid accounts usage and T1566 for phishing attacks that could potentially exploit this weakness. The lack of authentication requirements makes this vulnerability particularly dangerous as it can be exploited by attackers with minimal initial access or even automated scanning tools. Network administrators should consider this vulnerability in their risk assessments as it represents a fundamental breakdown in the security architecture of the NorthStar Controller, potentially allowing attackers to establish persistent access to network management systems. The vulnerability's impact on service availability and data integrity makes it a high-priority concern for organizations relying on Juniper's NorthStar Controller for network management operations.
Organizations affected by CVE-2017-2319 should immediately implement the available patches from Juniper Networks, specifically upgrading to version 2.1.0 Service Pack 1 or later. Additional mitigations should include network segmentation of the NorthStar Controller, implementation of network access controls, and monitoring for unauthorized access attempts. Security teams should conduct comprehensive assessments of their network management infrastructure to identify any other similar vulnerabilities and ensure proper access controls are in place for all administrative interfaces. The vulnerability highlights the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies to protect critical network management systems from unauthorized access attempts.