CVE-2012-0097 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 11 Express allows local users to affect confidentiality via unknown vectors related to ksh93 Shell.
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Analysis
by VulDB Data Team • 04/19/2017
The vulnerability identified as CVE-2012-0097 represents a security flaw within Oracle Solaris 11 Express operating system that specifically impacts the ksh93 shell implementation. This unspecified vulnerability creates a potential risk for local attackers who can exploit it to compromise the confidentiality of system data. The ksh93 shell serves as a critical component in the Solaris operating environment, providing command-line interface functionality and shell scripting capabilities that are fundamental to system administration and user operations. The vulnerability's classification as local indicates that exploitation requires prior access to the system, typically through legitimate user credentials or compromised accounts, making it particularly concerning for environments where privilege escalation or insider threats are possible. The unspecified nature of the vulnerability vectors suggests that the exact technical mechanism enabling the confidentiality breach has not been fully disclosed in public documentation, which is common for certain types of security flaws that may require specific exploitation techniques or environmental conditions to manifest effectively.
The technical flaw associated with CVE-2012-0097 stems from implementation issues within the ksh93 shell component that can be leveraged to access or manipulate confidential information. This type of vulnerability typically involves weaknesses in how the shell processes certain commands, handles memory management, or manages access controls for sensitive data. The ksh93 shell, being a sophisticated Bourne shell derivative, includes advanced features such as command history, job control, and scripting capabilities that create multiple potential attack surfaces. When local users can manipulate these shell components to affect confidentiality, it suggests possible issues with data isolation, memory corruption, or improper access control mechanisms within the shell's execution environment. The vulnerability may involve buffer overflows, improper privilege handling, or other memory management flaws that allow unauthorized data access or information disclosure. Such weaknesses can be particularly dangerous when combined with the shell's ability to execute complex scripts and handle user input, as they may enable attackers to extract sensitive system information, configuration details, or user data that should remain protected.
The operational impact of CVE-2012-0097 extends beyond simple data confidentiality concerns to potentially compromise the overall security posture of Solaris 11 Express systems. Local attackers who successfully exploit this vulnerability can gain unauthorized access to confidential information that may include system configuration details, user credentials, application data, or other sensitive materials that could be leveraged for further attacks. The vulnerability's presence in the ksh93 shell means that any system where this shell is actively used for administrative tasks or user interactions becomes a potential target for information disclosure attacks. Organizations running Solaris 11 Express systems face significant risks when this vulnerability exists, particularly in environments where multiple users have local access or where privilege escalation techniques could be employed to gain higher-level system access. The impact is particularly severe in enterprise environments where system administrators rely on shell-based tools for routine operations, as exploitation could lead to complete compromise of system integrity and data protection mechanisms. Additionally, the vulnerability may enable attackers to gather intelligence about system configurations, network topology, or other sensitive information that could facilitate more sophisticated attacks against the broader infrastructure.
Mitigation strategies for CVE-2012-0097 should focus on immediate patching and system hardening measures to prevent exploitation of the ksh93 shell vulnerability. Organizations should prioritize applying Oracle's official security patches and updates that address this specific vulnerability, as these updates typically contain fixes for the underlying implementation flaws that enable confidentiality breaches. System administrators should also implement strict access controls and monitoring for shell usage, particularly in environments where multiple users have local access to systems. The principle of least privilege should be enforced to minimize the potential impact of compromised accounts or privilege escalation attempts that could exploit this vulnerability. Network segmentation and monitoring solutions should be deployed to detect unusual shell activity or unauthorized data access patterns that might indicate exploitation attempts. Additionally, organizations should consider disabling or restricting ksh93 shell usage where possible, particularly in high-security environments, and implement comprehensive logging and audit mechanisms to track shell command execution and user activities. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other system components and ensure that the overall security posture remains robust against evolving threats. This vulnerability aligns with CWE-200, which addresses information exposure, and may relate to ATT&CK techniques involving privilege escalation and credential access, emphasizing the need for comprehensive defensive measures.
The vulnerability landscape for CVE-2012-0097 demonstrates the ongoing challenges in securing complex operating system shells and command-line interfaces. Shell-based vulnerabilities represent a persistent threat vector because they often provide direct access to system resources and can be leveraged for both information disclosure and privilege escalation attacks. The ksh93 shell's implementation complexity increases the potential attack surface and makes it more difficult to ensure complete protection against all possible exploitation vectors. Organizations should maintain awareness of similar vulnerabilities in other shell implementations and ensure that their security monitoring and incident response procedures account for shell-based threats. The presence of such vulnerabilities underscores the importance of continuous security assessments, regular patch management, and proactive threat hunting activities to identify and remediate potential security weaknesses before they can be exploited by malicious actors. This particular vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches and implementing comprehensive security controls around core system components that are frequently used by both legitimate users and potential attackers.