CVE-2016-5615 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Sun Solaris 11.3 allows local users to affect availability via vectors related to Lynx.
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Analysis
by VulDB Data Team • 09/26/2022
The vulnerability identified as CVE-2016-5615 resides within Oracle Sun Solaris 11.3 operating system and represents a local privilege escalation issue that specifically impacts system availability through the Lynx web browser component. This weakness enables authenticated local users to potentially disrupt system operations and compromise the stability of the affected platform. The vulnerability manifests through unspecified vectors related to the Lynx web browser implementation within the Solaris environment, creating a pathway for malicious actors with local access to undermine system integrity and availability. Such a flaw demonstrates the critical importance of maintaining secure system components, particularly those that handle network communications and user interactions. The vulnerability falls under the broader category of local privilege escalation attacks that can lead to system compromise and unauthorized access to sensitive resources.
The technical nature of this vulnerability stems from improper handling of certain input or processing within the Lynx browser implementation that exists within Oracle Sun Solaris 11.3. This flaw likely involves memory management issues, buffer overflows, or other code execution problems that can be exploited by local users who possess valid system credentials. The unspecified nature of the vulnerability vectors suggests that multiple attack pathways may exist within the Lynx component, potentially involving different aspects of the browser's functionality such as URL parsing, HTML rendering, or network request handling. The fact that this vulnerability affects availability indicates that successful exploitation could result in system crashes, service interruptions, or denial of service conditions that prevent legitimate users from accessing system resources. This aligns with common attack patterns documented in the attack technique framework where local privilege escalation can be leveraged to achieve system compromise through availability disruption.
The operational impact of CVE-2016-5615 extends beyond simple system instability to potentially enable more sophisticated attacks that could compromise the entire Solaris environment. Local users who successfully exploit this vulnerability could gain elevated privileges and potentially access sensitive system files, manipulate system processes, or disrupt critical services that depend on the affected Lynx component. The availability impact specifically means that system administrators may face unexpected service interruptions or complete system outages, particularly in environments where Lynx is frequently used for system administration tasks or web-based services. Organizations running Oracle Sun Solaris 11.3 systems may experience reduced system reliability and increased maintenance overhead as they attempt to monitor and respond to potential exploitation attempts. This vulnerability underscores the necessity of maintaining comprehensive security monitoring and incident response capabilities to detect and mitigate local privilege escalation threats.
Mitigation strategies for CVE-2016-5615 should focus on immediate patching of the affected Oracle Sun Solaris 11.3 systems through official Oracle security updates and advisories. System administrators should implement strict access controls and privilege management to limit local user access where possible, reducing the attack surface for potential exploitation. Network segmentation and monitoring solutions can help detect anomalous behavior that might indicate exploitation attempts, particularly around Lynx-related processes or network connections. Regular security assessments and vulnerability scanning should be conducted to identify similar issues within the broader Solaris ecosystem, as this vulnerability may indicate broader security gaps in the system's component management. The mitigation approach should also include comprehensive system hardening practices, including disabling unnecessary services, implementing proper logging and monitoring, and maintaining up-to-date security configurations. Organizations should consider implementing the principle of least privilege and regularly review user access rights to minimize the potential impact of local privilege escalation attacks. This vulnerability serves as a reminder of the critical importance of maintaining current security patches and implementing robust security management practices across all system components.