CVE-2017-10624 in Junos Space
Summary
by MITRE
Insufficient verification of node certificates in Juniper Networks Junos Space may allow a man-in-the-middle type of attacker to make unauthorized modifications to Space database or add nodes. Affected releases are Juniper Networks Junos Space all versions prior to 17.1R1.
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Analysis
by VulDB Data Team • 01/03/2023
The vulnerability identified as CVE-2017-10624 represents a critical security flaw in Juniper Networks Junos Space platform that undermines the integrity of certificate verification processes. This weakness specifically targets the node certificate validation mechanism that is fundamental to establishing secure communications between network devices and the Junos Space management system. The issue stems from inadequate cryptographic validation procedures that fail to properly authenticate the identity of connecting nodes, creating a significant attack surface for malicious actors who wish to compromise the management infrastructure.
The technical implementation flaw manifests in the insufficient verification of X.509 certificates used during the node registration and communication processes within Junos Space. When nodes attempt to establish connections with the management system, the platform should validate certificate chains, check certificate authorities, and verify domain names against the expected hostnames. However, the vulnerable implementation allows attackers to present forged certificates that pass the validation checks, effectively bypassing the security controls designed to prevent unauthorized access. This vulnerability directly maps to CWE-310, which addresses cryptographic issues related to insufficient verification of certificates, and aligns with ATT&CK technique T1078.004 which covers valid accounts used for persistence and privilege escalation.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential complete compromise of the Junos Space management environment. Attackers exploiting this weakness can inject malicious nodes into the network management system, potentially gaining access to sensitive configuration data, credentials, and operational information stored within the Space database. The ability to add unauthorized nodes creates opportunities for persistent threats to establish footholds within the network infrastructure, while database modifications could lead to complete disruption of network management services. This vulnerability enables attackers to operate undetected within the management plane, potentially leading to broader network compromise through the exploitation of other interconnected systems.
Organizations affected by CVE-2017-10624 should immediately implement the remediation measures provided in Juniper Networks Security Bulletin 0017-17-1R1, which includes upgrading to version 17.1R1 or later. The upgrade process should be carefully planned to ensure minimal disruption to existing network operations while addressing the cryptographic verification weaknesses. Additional mitigations include implementing network segmentation to isolate Junos Space management functions, deploying enhanced monitoring for unauthorized node additions, and conducting thorough certificate management reviews to identify any compromised certificates. Security teams should also consider implementing certificate pinning mechanisms where possible and establish more robust audit procedures for node registration activities. The vulnerability demonstrates the critical importance of proper certificate validation in network management systems and underscores the need for comprehensive cryptographic security controls that align with industry standards such as NIST SP 800-57 and ISO/IEC 15408.