CVE-2011-2311 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 10 allows local users to affect availability, related to ZFS.
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Analysis
by VulDB Data Team • 11/24/2021
The vulnerability identified as CVE-2011-2311 represents a significant security flaw within Oracle Solaris 10 operating system, specifically affecting the ZFS (Zettabyte File System) component. This issue falls under the category of availability impacts, meaning that local attackers can potentially disrupt system operations and services through exploitation of this weakness. The unspecified nature of the vulnerability description suggests that the exact technical mechanism remains undisclosed, which is common in early vulnerability reports where full details have not yet been publicly disclosed or analyzed by security researchers.
ZFS serves as a critical storage management system within Solaris 10, providing advanced features such as data integrity verification, snapshot capabilities, and efficient storage management. The vulnerability affects local users who already have access to the system, which means that an attacker must first gain legitimate system access before exploiting this particular weakness. This characteristic places the vulnerability in the context of privilege escalation and lateral movement attacks where attackers have already established a foothold within the target environment. The impact on availability indicates that successful exploitation could lead to system crashes, service disruptions, or complete unavailability of ZFS storage services, potentially affecting critical data operations and business continuity.
The technical implications of this vulnerability extend beyond simple service disruption, as it represents a fundamental weakness in the storage subsystem that could be leveraged to cause more severe operational impacts. Local privilege escalation vulnerabilities in core system components like ZFS can provide attackers with opportunities to compromise system integrity and potentially escalate their access privileges further. From a cybersecurity perspective, this vulnerability demonstrates the importance of maintaining up-to-date system patches and implementing robust access controls to limit local user privileges. The attack surface for such vulnerabilities is particularly concerning given that ZFS is integral to system storage operations, making any disruption potentially catastrophic for system availability and data integrity.
Organizations running Oracle Solaris 10 systems should prioritize patch management and vulnerability assessment activities to address this issue promptly. The vulnerability aligns with common attack patterns documented in the MITRE ATT&CK framework where local users can leverage system weaknesses to cause availability impacts. Security professionals should consider implementing additional monitoring for unusual ZFS behavior and system stability issues that could indicate exploitation attempts. The CWE (Common Weakness Enumeration) classification for such vulnerabilities typically falls under categories related to system availability and data integrity, highlighting the need for comprehensive security controls that address both prevention and detection of such threats. Proper access controls, regular security audits, and timely patch deployment remain essential defensive measures against this and similar vulnerabilities in enterprise environments.