CVE-2011-3543 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 11 Express allows remote attackers to affect availability, related to iSCSI DataMover (IDM).
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Analysis
by VulDB Data Team • 11/24/2021
The vulnerability identified as CVE-2011-3543 resides within Oracle Solaris 11 Express operating system and specifically targets the iSCSI DataMover component known as IDM. This unspecified weakness creates a potential attack vector that remote adversaries can exploit to compromise system availability, representing a significant concern for enterprise environments that rely on iSCSI storage connectivity. The iSCSI DataMover component plays a critical role in managing storage data transfer operations within the Solaris environment, making it a prime target for attackers seeking to disrupt storage services.
The technical nature of this vulnerability stems from insufficient input validation or error handling mechanisms within the iSCSI DataMover subsystem. Attackers can potentially craft malicious iSCSI commands or data packets that trigger unexpected behavior in the IDM component, leading to system instability or complete service disruption. The unspecified nature of the flaw suggests that the exact technical mechanism remains undisclosed, though such vulnerabilities typically involve buffer overflows, improper resource management, or authentication bypass scenarios common in storage protocols. This weakness allows attackers to manipulate the storage data transfer process in ways that were not anticipated by the system design, potentially causing denial of service conditions.
The operational impact of this vulnerability extends beyond simple service disruption to encompass broader enterprise security implications. Organizations utilizing Solaris 11 Express with iSCSI storage configurations face potential downtime risks that can affect critical business operations, particularly in data center environments where storage availability is paramount. The remote exploitability means that attackers do not require physical access or local privileges to cause damage, making the vulnerability particularly dangerous in networked environments. This characteristic aligns with ATT&CK technique T1499.004 for network denial of service and represents a significant risk to storage infrastructure availability. The vulnerability could enable attackers to perform persistent disruption attacks that compromise the reliability of storage services critical to database operations, virtualization platforms, and enterprise applications.
Mitigation strategies for CVE-2011-3543 should prioritize immediate patch application from Oracle, as this represents a critical security flaw requiring vendor-provided fixes. Organizations should implement network segmentation to limit access to iSCSI storage services and employ intrusion detection systems to monitor for suspicious iSCSI traffic patterns. The vulnerability demonstrates the importance of maintaining up-to-date security patches and following the principle of least privilege for storage access controls. Additionally, implementing proper network monitoring and logging for iSCSI traffic can help detect exploitation attempts and provide forensic evidence for security investigations. This vulnerability highlights the need for comprehensive security testing of storage subsystems and adherence to security standards such as those outlined in the CWE catalog for storage-related weaknesses, particularly those related to data integrity and availability. Organizations should also consider implementing redundant storage paths and failover mechanisms to minimize the impact of potential exploitation attempts.