CVE-2016-5525 in Solaris Cluster
Summary
by MITRE
Unspecified vulnerability in the Solaris Cluster component in Oracle Sun Systems Products Suite 3.3 and 4.3 allows local users to affect integrity via vectors related to Cluster check files.
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Analysis
by VulDB Data Team • 09/26/2022
The vulnerability identified as CVE-2016-5525 resides within the Solaris Cluster component of Oracle Sun Systems Products Suite version 3.3 and 4.3, representing a significant security weakness that impacts the integrity of cluster operations. This issue affects local users who can potentially manipulate cluster check files to compromise system integrity, making it particularly concerning for enterprise environments that rely heavily on clustered systems for high availability and fault tolerance.
The technical flaw manifests through unspecified vectors related to cluster check files, which suggests that attackers can exploit the underlying mechanisms that govern how cluster integrity is verified and maintained. Cluster check files typically contain critical information about node status, resource availability, and operational health that ensures consistent cluster behavior. When these files become compromised, they can lead to incorrect operational decisions by the cluster management system, potentially allowing malicious actors to bypass normal cluster validation processes.
From an operational impact perspective, this vulnerability undermines the fundamental security principles of integrity and availability within clustered environments. Local users who can manipulate cluster check files may be able to cause false positives or negatives in cluster health monitoring, leading to inappropriate failover decisions, resource allocation errors, or complete cluster disruption. The attack surface is particularly dangerous because it allows local privilege escalation or manipulation of cluster state information without requiring elevated privileges beyond local access.
The vulnerability aligns with CWE-269, which addresses improper privilege management, and potentially relates to CWE-310, concerning cryptographic issues, depending on how the cluster check files are implemented. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and persistence within cluster environments, specifically T1068 for local privilege escalation and T1484 for domain controller privilege escalation if the cluster serves as a critical infrastructure component.
Mitigation strategies should focus on implementing strict file permissions and access controls for cluster check files, regular monitoring of cluster integrity verification processes, and maintaining updated cluster management software. Organizations should also consider implementing additional logging and alerting mechanisms around cluster check file modifications, along with regular security audits of cluster configurations. The recommended approach includes applying Oracle's security patches promptly, implementing least privilege principles for cluster management accounts, and conducting regular penetration testing of cluster environments to identify potential exploitation vectors. Network segmentation and monitoring of cluster communication channels can further reduce the attack surface and provide early detection capabilities for any attempted exploitation of this vulnerability.