CVE-2008-5340 in SDKJDK
Summary
by MITRE
Unspecified vulnerability in Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted JWS applications to gain privileges to access local files or applications via unknown vectors, aka 6727081.
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Analysis
by VulDB Data Team • 08/25/2019
The vulnerability described in CVE-2008-5340 represents a critical security flaw within Java Web Start and Java Plug-in components across multiple Java runtime environments. This issue affects Sun JDK and JRE versions 6 Update 10 and earlier, JDK and JRE 5.0 Update 16 and earlier, as well as SDK and JRE 1.4.2_18 and earlier versions. The vulnerability stems from insufficient access controls that permit untrusted Java Web Start applications to escalate their privileges and gain unauthorized access to local system resources, including files and applications that should normally be protected from such access.
The technical nature of this vulnerability involves privilege escalation mechanisms within the Java security model that fail to properly enforce sandbox restrictions for Web Start applications. When users execute untrusted JWS applications, the flaw allows these applications to bypass normal security boundaries and access local file systems, potentially leading to data theft, system compromise, or further exploitation. The vulnerability operates through unspecified vectors that likely involve manipulation of Java security policies or exploitation of trust relationships within the Java execution environment, making it particularly dangerous as it can be leveraged by attackers to execute malicious code with elevated privileges.
The operational impact of this vulnerability extends beyond simple file access violations, as it represents a fundamental breakdown in Java's security architecture. Attackers could potentially use this vulnerability to read sensitive local files, execute arbitrary code with system privileges, or even establish persistent backdoors on affected systems. The widespread adoption of Java across enterprise environments and web applications makes this vulnerability particularly dangerous, as it could affect numerous systems simultaneously. Organizations running affected Java versions face significant risk of data breaches, system compromise, and potential lateral movement within their networks, as the vulnerability allows for privilege escalation that could lead to complete system control.
Mitigation strategies for CVE-2008-5340 should prioritize immediate patching of affected Java installations to the latest available versions that contain security fixes. System administrators should disable Java Web Start and Java Plug-in functionality where possible, particularly in environments where untrusted applications are executed. Implementation of strict Java security policies and the use of Java security managers with restricted permissions can help minimize the impact of such vulnerabilities. Additionally, network segmentation and monitoring for suspicious Java-related activities should be implemented to detect potential exploitation attempts. This vulnerability aligns with CWE-276, which describes inadequate privilege management, and maps to ATT&CK techniques involving privilege escalation and persistence mechanisms. Organizations should also consider implementing application whitelisting policies to prevent execution of untrusted Java applications and maintain comprehensive audit logs for security monitoring purposes.