CVE-2011-2312 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 10 allows local users to affect confidentiality, related to ZFS.
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Analysis
by VulDB Data Team • 11/24/2021
The vulnerability identified as CVE-2011-2312 represents a security flaw within Oracle Solaris 10 operating system that specifically impacts the ZFS (Zettabyte File System) component. This issue manifests as an unspecified weakness that enables local attackers to compromise the confidentiality of system data, making it a significant concern for organizations relying on Solaris 10 environments. The ZFS file system, known for its advanced features including data integrity checking and snapshot capabilities, becomes compromised in this instance, potentially allowing unauthorized data exposure.
The technical nature of this vulnerability stems from the underlying implementation details within the Solaris 10 ZFS subsystem that fail to properly enforce access controls or data isolation mechanisms. As a local privilege escalation vector, the flaw likely involves improper handling of file system operations or kernel-level interactions that permit a local user to bypass normal security boundaries. This type of vulnerability typically exploits weaknesses in kernel memory management, file system permission checking, or inter-process communication mechanisms within the ZFS implementation. The unspecified nature of the exact flaw suggests that the precise technical mechanism remains classified or was not fully detailed in the initial vulnerability report.
From an operational perspective, this vulnerability poses substantial risk to organizations running Solaris 10 systems, particularly those with multiple local users or shared environments. Local users who gain access to the system can potentially extract sensitive information from other users' data or system files, leading to data breaches and information disclosure incidents. The impact extends beyond simple data theft to include potential compromise of system integrity and confidentiality, as ZFS is often used for critical data storage and backup operations. Organizations may face regulatory compliance issues and security audit failures if such vulnerabilities remain unpatched, especially in environments subject to strict data protection requirements.
Mitigation strategies for CVE-2011-2312 should prioritize immediate patch application from Oracle, as this represents a known vulnerability requiring vendor-provided security updates. System administrators should implement comprehensive monitoring of local user activities and file system access patterns to detect potential exploitation attempts. Network segmentation and privilege separation techniques can help limit the potential impact of local privilege escalation attacks. Organizations should also consider implementing additional security controls such as mandatory access controls, file integrity monitoring, and regular security assessments to identify similar vulnerabilities. The remediation process must include thorough testing of patches in non-production environments before deployment to ensure system stability and prevent service disruptions. This vulnerability aligns with CWE-284 (Improper Access Control) and may relate to ATT&CK techniques involving privilege escalation and credential access, highlighting the need for comprehensive security hardening measures.