CVE-2016-0448 in Java SE
Summary
by MITRE
Unspecified vulnerability in the Java SE and Java SE Embedded components in Oracle Java SE 6u105, 7u91, and 8u66, and Java SE Embedded 8u65 allows remote authenticated users to affect confidentiality via vectors related to JMX.
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Analysis
by VulDB Data Team • 07/05/2022
The vulnerability identified as CVE-2016-0448 resides within Oracle Java SE and Java SE Embedded components, specifically affecting versions 6u105, 7u91, 8u66, and 8u65 respectively. This issue falls under the broader category of Java Management Extensions (JMX) security flaws that can be exploited by authenticated attackers to compromise system confidentiality. The vulnerability's classification as unspecified indicates that Oracle did not provide detailed technical information about the precise nature of the flaw, though it clearly relates to JMX functionality within the Java runtime environment. The affected versions represent critical maintenance releases where the security patch was not yet implemented, leaving systems exposed to potential exploitation. This type of vulnerability typically manifests when JMX remote management interfaces are enabled, creating attack vectors that allow unauthorized access to system resources through legitimate management protocols.
The technical flaw specifically exploits the JMX component's handling of authenticated connections and management operations, potentially allowing attackers to extract sensitive information from the Java Virtual Machine through improperly secured management interfaces. The vulnerability operates at the application layer and requires an authenticated user context, meaning that attackers must first establish valid credentials before exploiting the flaw. This authentication requirement reduces the attack surface but does not eliminate the risk entirely, as compromised legitimate accounts can be leveraged to access confidential system information. The JMX subsystem in Java SE is designed to provide management and monitoring capabilities for Java applications, but this feature becomes a security risk when proper access controls are not enforced. The vulnerability's impact on confidentiality suggests that attackers could potentially access sensitive management data, configuration information, or system metrics that should remain restricted to authorized administrators.
From an operational standpoint, this vulnerability poses significant risks to enterprise environments where Java applications are deployed with JMX management enabled. Organizations running Java applications with exposed management interfaces become vulnerable to information disclosure attacks that could reveal system configurations, application details, or other sensitive operational data. The impact extends beyond individual systems to potentially compromise entire application infrastructures, especially in environments where multiple Java applications share common management interfaces. Attackers could exploit this vulnerability to gain insights into system architecture, identify potential attack vectors, or extract information that could aid in further exploitation attempts. The fact that this affects both Java SE and Java SE Embedded components indicates that the vulnerability spans across different deployment scenarios, including desktop applications, server environments, and embedded systems. This broad impact requires comprehensive security assessments across all Java-based systems within an organization's infrastructure.
Mitigation strategies for CVE-2016-0448 should focus on immediate patching of affected Java versions, implementing strict network segmentation for systems with JMX interfaces, and enforcing robust access controls for management operations. Organizations should disable JMX management interfaces when not actively required, as this significantly reduces the attack surface. The implementation of network access controls using firewalls and access control lists can prevent unauthorized access to JMX ports, while strong authentication mechanisms should be enforced for any remaining JMX access points. Regular security assessments and vulnerability scanning should be conducted to identify systems with exposed JMX interfaces, and privileged access should be monitored closely for any suspicious activities. Additionally, organizations should consider implementing intrusion detection systems that can monitor for unusual patterns of JMX access that may indicate exploitation attempts. This vulnerability aligns with CWE-284 (Improper Access Control) and can be mapped to ATT&CK techniques involving credential access and privilege escalation through management interfaces. The recommended remediation approach includes applying Oracle's official security patches and conducting comprehensive security reviews of all Java-based applications to ensure proper management interface configurations.