CVE-2022-22152 in Contrail Service Orchestration
Summary
by MITRE • 01/19/2022
A Protection Mechanism Failure vulnerability in the REST API of Juniper Networks Contrail Service Orchestration allows one tenant on the system to view confidential configuration details of another tenant on the same system. By utilizing the REST API, one tenant is able to obtain information on another tenant's firewall configuration and access control policies, as well as other sensitive information, exposing the tenant to reduced defense against malicious attacks or exploitation via additional undetermined vulnerabilities. This issue affects Juniper Networks Contrail Service Orchestration versions prior to 6.1.0 Patch 3.
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Analysis
by VulDB Data Team • 01/20/2022
This vulnerability represents a critical authorization failure within Juniper Networks Contrail Service Orchestration's REST API implementation, fundamentally undermining the multi-tenancy security model that is essential for cloud and network virtualization environments. The flaw manifests as a protection mechanism failure that allows unauthorized cross-tenant data access, enabling one tenant to retrieve confidential configuration details belonging to another tenant within the same system. This type of vulnerability falls under CWE-668, which specifically addresses "Exposure of Resource to Wrong Sphere," where system resources are improperly exposed to entities that should not have access. The issue affects the core architectural integrity of the platform by compromising the isolation boundaries that separate tenant environments, creating a significant risk for organizations relying on shared infrastructure.
The technical implementation of this vulnerability stems from insufficient access controls and validation mechanisms within the REST API endpoints responsible for managing firewall configurations and access control policies. When a malicious tenant exploits this flaw, they can traverse the API to access sensitive information that should be restricted to the owning tenant only. This includes not only firewall rules and access control lists but potentially other configuration data that could reveal network topology, security policies, or system dependencies. The vulnerability's impact extends beyond simple information disclosure as it provides attackers with intelligence that could be leveraged for more sophisticated attacks, potentially leading to privilege escalation or lateral movement within the network infrastructure. The affected versions prior to 6.1.0 Patch 3 indicate that this was a known issue that required specific patching to resolve the underlying authorization flaws.
The operational consequences of this vulnerability are severe for organizations utilizing Contrail Service Orchestration, as it directly compromises the fundamental security assumptions of multi-tenant cloud environments. Tenant isolation is a critical requirement for cloud service providers and enterprises operating shared infrastructure, and this failure creates an avenue for data leakage between competing tenants or organizations sharing the same platform. The exposure of firewall configurations and access control policies provides attackers with detailed information about network defenses, potentially enabling them to craft more effective attacks against the target tenant's infrastructure. This vulnerability aligns with ATT&CK technique T1566, which covers social engineering tactics, as the compromised tenant information could be used to develop more targeted phishing or exploitation campaigns. Organizations may experience regulatory compliance violations and significant reputational damage when such cross-tenant data exposure occurs, particularly in industries with strict data protection requirements.
Mitigation strategies for this vulnerability must include immediate deployment of the 6.1.0 Patch 3 or subsequent versions that address the authorization control failures in the REST API implementation. Network administrators should implement additional monitoring and logging of REST API access patterns to detect anomalous behavior that might indicate exploitation attempts. The remediation process should also involve reviewing and strengthening access control policies, ensuring that proper authentication and authorization mechanisms are enforced at every API endpoint. Organizations should conduct comprehensive security assessments to identify any other potential authorization bypass vulnerabilities within their Contrail deployments and consider implementing network segmentation to limit the blast radius of any future exploitation attempts. The vulnerability serves as a reminder of the critical importance of proper access control implementation in multi-tenant environments and the necessity of regular security testing to identify and remediate protection mechanism failures that could compromise system integrity.