CVE-2009-1102 in JRE
Summary
by MITRE
Unspecified vulnerability in the Virtual Machine in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 6 Update 12 and earlier allows remote attackers to access files and execute arbitrary code via unknown vectors related to "code generation."
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Analysis
by VulDB Data Team • 08/09/2021
The vulnerability identified as CVE-2009-1102 represents a critical security flaw within the Java Virtual Machine implementation that affects Java SE Development Kit and Java Runtime Environment versions 6 Update 12 and earlier. This unspecified vulnerability specifically targets the code generation mechanisms within the virtual machine, creating potential attack vectors that could be exploited by remote adversaries to gain unauthorized access to system resources and execute malicious code. The vulnerability stems from insufficient validation and sanitization of code generation processes, which are fundamental components of the Java runtime environment's ability to dynamically compile and execute bytecode.
The technical nature of this vulnerability lies in the improper handling of code generation within the Java Virtual Machine's execution environment. When the JVM processes bytecode that includes certain code generation operations, it fails to adequately validate input parameters and execution contexts, potentially allowing attackers to manipulate the code generation process. This weakness enables attackers to construct malicious bytecode sequences that can bypass normal security boundaries and access restricted system resources. The vulnerability operates at a low level within the JVM architecture, making it particularly dangerous as it can potentially circumvent higher-level security controls and access control mechanisms that are typically in place to protect system integrity.
From an operational perspective, this vulnerability presents significant risks to organizations running affected Java versions, as it allows remote code execution capabilities that could lead to complete system compromise. Attackers could leverage this vulnerability to access sensitive files, execute arbitrary commands, and potentially establish persistent access to target systems. The impact extends beyond individual system compromise to potentially affect entire network infrastructures, especially in environments where Java applications are widely deployed. The unspecified nature of the attack vectors means that multiple exploitation techniques could be possible, making it difficult for organizations to implement comprehensive defensive measures without detailed analysis of their specific Java implementations.
The vulnerability aligns with CWE-119, which addresses "Improper Restriction of Operations within the Bounds of a Memory Buffer," and relates to the broader category of code execution vulnerabilities that fall under the ATT&CK framework's technique T1059 for Command and Scripting Interpreter. Organizations should prioritize immediate patching of affected systems to address this vulnerability, as the risk of exploitation remains high given the widespread use of Java applications. Additionally, implementing network segmentation, disabling unnecessary Java runtime environments, and monitoring for suspicious code execution patterns can help mitigate potential impacts while awaiting official patches. Security teams should also conduct thorough vulnerability assessments to identify all systems running affected Java versions and ensure proper access controls are implemented to limit potential damage from successful exploitation attempts.