CVE-2012-0506 in JRE
Summary
by MITRE
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Update 30 and earlier, 5.0 Update 33 and earlier, and 1.4.2_35 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect integrity via unknown vectors related to CORBA.
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Analysis
by VulDB Data Team • 11/30/2021
The vulnerability described in CVE-2012-0506 represents a critical security flaw within Oracle's Java Runtime Environment that affects multiple versions of Java SE across different release lines. This issue specifically targets the CORBA (Common Object Request Broker Architecture) functionality within the JRE, creating potential pathways for malicious actors to compromise system integrity through untrusted Java applications executed via Web Start or applet mechanisms. The vulnerability exists in versions 7 Update 2 and earlier, 6 Update 30 and earlier, 5.0 Update 33 and earlier, and 1.4.2_35 and earlier, indicating a widespread impact across the Java ecosystem that required immediate attention from security professionals and system administrators.
The technical nature of this vulnerability stems from the CORBA component's handling of untrusted code execution within the Java Runtime Environment. CORBA is a middleware technology that enables communication between different software components regardless of the programming language or platform they were developed on, but this functionality becomes problematic when processing untrusted input from web-based Java applications. The unspecified vectors related to CORBA suggest that the flaw likely involves improper validation or handling of CORBA requests, allowing malicious code to manipulate the underlying system state or data structures through the CORBA communication layer. This type of vulnerability falls under the category of integrity violations as defined by CWE-284, where unauthorized parties can modify system data or behavior through indirect means.
From an operational perspective, this vulnerability creates significant risk for organizations that deploy Java-based applications or allow users to execute untrusted code through Java Web Start or browser applets. Attackers could exploit this flaw by crafting malicious CORBA requests within Java applets or Web Start applications that would execute with elevated privileges within the JRE environment, potentially leading to data corruption, unauthorized system modifications, or complete system compromise. The remote nature of the attack vector means that exploitation could occur from any location without requiring physical access to the target system, making it particularly dangerous in enterprise environments where Java applications are commonly deployed. This vulnerability directly maps to ATT&CK technique T1203, which involves exploiting weaknesses in remote application services, and represents a classic example of privilege escalation through trusted application pathways.
Organizations affected by this vulnerability should prioritize immediate patching of all affected Java installations to prevent exploitation. The recommended mitigation strategy involves upgrading to patched versions of Java SE that address the CORBA-related issues, with particular attention to ensuring that all systems running affected Java versions are updated promptly. System administrators should also implement network segmentation and application whitelisting policies to limit the execution of untrusted Java code, while monitoring for suspicious CORBA-related network traffic patterns that might indicate exploitation attempts. Additionally, organizations should consider disabling Java applet execution in web browsers and restricting Java Web Start functionality in environments where it is not strictly required, as these measures provide additional layers of defense against potential exploitation of this integrity vulnerability.