CVE-2011-2294 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 10 and 11 Express allows remote attackers to affect availability, related to SSH.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2011-2294 represents a significant security flaw within Oracle Solaris operating systems, specifically affecting versions 10 and 11 Express. This issue resides within the Secure Shell implementation and constitutes a remote attack vector that can compromise system availability. The unspecified nature of the vulnerability details suggests a complex underlying flaw that requires careful analysis and remediation approaches. Such vulnerabilities in core system components like SSH daemon can have cascading effects on enterprise security infrastructure, particularly in environments where Solaris systems serve as critical network services.
The technical implementation of this vulnerability stems from weaknesses in how the SSH service handles certain remote connections or authentication processes within the Solaris operating system. While the exact code-level flaw remains unspecified, the classification indicates a potential denial of service condition that could allow remote attackers to disrupt SSH services. This type of vulnerability typically involves improper input validation, memory management issues, or state handling problems within the SSH daemon process. The flaw likely exists in the protocol handling mechanisms or in the way the system processes incoming SSH connection requests, potentially allowing malicious actors to trigger system instability or resource exhaustion.
From an operational impact perspective, this vulnerability creates substantial risk for organizations relying on Solaris systems for critical network services. Remote attackers could exploit this weakness to render SSH services unavailable, effectively cutting off legitimate administrative access to affected systems. The availability impact extends beyond simple service disruption as it may compromise the overall security posture of the network infrastructure. Organizations with Solaris systems in production environments face potential business continuity issues, especially when considering that SSH is often the primary method for secure remote administration. The vulnerability could be leveraged as part of broader attack campaigns targeting enterprise networks, potentially leading to further compromise of systems that depend on SSH for secure access.
Mitigation strategies for CVE-2011-2294 should prioritize immediate patch deployment from Oracle, as this represents a critical security issue requiring urgent attention. Organizations must implement comprehensive monitoring of SSH services for abnormal connection patterns or service disruptions that could indicate exploitation attempts. Network segmentation and firewall rules should be reviewed to limit unnecessary SSH access while maintaining legitimate administrative capabilities. The implementation of intrusion detection systems capable of identifying suspicious SSH traffic patterns provides additional defense layers. Security teams should also consider implementing alternative authentication methods and access controls to reduce dependency on potentially vulnerable SSH implementations. Regular vulnerability assessments and security audits of Solaris systems help identify similar issues that may exist within the broader attack surface, aligning with industry best practices for maintaining secure computing environments.
This vulnerability aligns with CWE-119 which addresses "Improper Restriction of Operations within the Bounds of a Memory Buffer" and potentially CWE-400 which covers "Uncontrolled Resource Consumption." The ATT&CK framework categorizes this under T1499 which involves "Endpoint Denial of Service" and T1566 which covers "Phishing" as attackers might use this vulnerability as part of initial access campaigns. Organizations should also consider the broader implications for their security operations, including incident response procedures and system recovery capabilities when dealing with availability-focused attacks targeting core infrastructure services.