CVE-2008-5345 in BEA WebLogic
Summary
by MITRE
Unspecified vulnerability in Java Runtime Environment (JRE) with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; SDK and JRE 1.4.2_18 and earlier; and SDK and JRE 1.3.1_23 and earlier allows code that is loaded from a local filesystem to read arbitrary files and make unauthorized connections to localhost via unknown vectors.
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Analysis
by VulDB Data Team • 08/25/2019
The vulnerability identified as CVE-2008-5345 represents a critical security flaw within multiple versions of Sun Microsystems Java Runtime Environment and Java Development Kit across various release streams. This vulnerability affects JRE 6 Update 10 and earlier versions, JDK 5.0 Update 16 and earlier versions, as well as older SDK and JRE versions dating back to 1.4.2_18 and 1.3.1_23. The flaw manifests in the manner in which Java applications handle code execution from local filesystems, creating an attack surface that could be exploited by malicious actors to gain unauthorized access to system resources. The vulnerability falls under the category of unspecified vector issues, indicating that the exact technical mechanism remains partially obscured in the initial reporting, though the implications are clearly severe for system security.
The technical flaw stems from insufficient validation mechanisms within the Java security model when processing code loaded from local filesystems. When Java applications execute code from local storage, the security sandbox that typically protects against unauthorized file access and network operations becomes compromised. Attackers can exploit this weakness to load malicious code that bypasses normal security restrictions, enabling the execution of arbitrary file reads against the local filesystem. This capability allows unauthorized access to sensitive files that should normally be protected from such operations. The vulnerability also permits unauthorized connections to localhost, which represents a particularly dangerous aspect as it enables attackers to probe and potentially exploit services running on the same machine that may not be directly exposed to external networks.
The operational impact of this vulnerability extends far beyond simple data theft, as it provides attackers with a foothold for more sophisticated attacks within the target environment. The ability to read arbitrary files means that attackers can potentially access configuration files, database credentials, application data, and other sensitive information stored locally on the system. When combined with the unauthorized localhost connection capability, this vulnerability enables attackers to conduct reconnaissance on services running on the same host, potentially identifying additional vulnerabilities or access points. The attack vector through local filesystem code loading suggests that this vulnerability could be triggered through various means including malicious web applets, desktop applications, or any Java-based software that loads content from local storage. This makes the vulnerability particularly dangerous in enterprise environments where Java applications are commonly deployed across multiple systems and platforms.
Security mitigations for CVE-2008-5345 primarily focus on immediate version updates and security hardening measures. Organizations should prioritize upgrading to patched versions of Java Runtime Environment and Development Kit, specifically targeting versions that address this vulnerability. The remediation process should include comprehensive patch management across all systems running affected Java versions, with particular attention to legacy systems that may be running older release streams. Network segmentation and access controls should be implemented to limit the potential impact of successful exploitation, particularly by restricting access to localhost services that could be targeted through this vulnerability. Additionally, security monitoring should be enhanced to detect unusual file access patterns and unauthorized network connections that might indicate exploitation attempts. This vulnerability aligns with CWE-264, which addresses permissions, privileges, and access control issues, and could potentially be mapped to ATT&CK techniques related to privilege escalation and lateral movement through local network connections. System administrators should also consider implementing application whitelisting policies to restrict which Java applications can execute code from local filesystems, reducing the attack surface available to potential exploiters.