CVE-2006-2201 in Manager
Summary
by MITRE
Unspecified vulnerability in CA Resource Initialization Manager (CAIRIM) 1.x before 20060502, as used in z/OS Common Services and the LMP component in multiple products, allows attackers to violate integrity via a certain "problem state program" that uses SVC to gain access to supervisor state, key 0.
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Analysis
by VulDB Data Team • 07/25/2018
The vulnerability identified as CVE-2006-2201 represents a critical integrity breach within the CA Resource Initialization Manager (CAIRIM) component of IBM z/OS Common Services and related products. This unspecified flaw exists in CAIRIM versions 1.x prior to the 20060502 release and demonstrates a fundamental weakness in the system's privilege escalation mechanisms. The vulnerability specifically targets the supervisor state protection mechanisms that are essential for maintaining the security boundaries between user and system modes in mainframe environments.
The technical exploitation of this vulnerability occurs through a specific "problem state program" that leverages the Supervisor Call (SVC) instruction to transition from user mode to supervisor state. This mechanism allows an attacker to execute code with the highest system privileges, specifically key 0 access, which represents the most privileged execution level in IBM mainframe architectures. The SVC instruction is designed for legitimate system calls but becomes exploitable when the system fails to properly validate the calling program's authorization and privilege level. This represents a classic case of improper privilege handling that violates fundamental security principles.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass complete system compromise and data integrity violations. When an attacker successfully exploits this flaw, they gain unrestricted access to all system resources, including sensitive data, system configuration information, and the ability to modify critical system components. The vulnerability affects multiple products that utilize the LMP (Logical Machine Processor) component, indicating a widespread exposure across IBM's mainframe ecosystem. This type of vulnerability directly violates the principle of least privilege and can lead to catastrophic consequences including data breaches, system corruption, and complete service disruption.
From a cybersecurity perspective, this vulnerability aligns with CWE-284 (Improper Access Control) and represents a privilege escalation attack vector that could be classified under ATT&CK technique T1068 (Exploitation for Privilege Escalation). The attack requires minimal external knowledge since it exploits inherent flaws in the system's privilege management rather than relying on complex social engineering or external attack vectors. Organizations running affected versions of z/OS Common Services and related products face significant risk of unauthorized access and data compromise. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches in enterprise environments where system integrity is paramount.
The remediation strategy for this vulnerability requires immediate deployment of the vendor-provided security patches released after the 20060502 date. System administrators must ensure that all instances of CAIRIM 1.x are upgraded to versions that address this privilege escalation flaw. Additionally, organizations should implement comprehensive monitoring for unauthorized system access attempts and conduct thorough security assessments of their mainframe environments. The vulnerability serves as a reminder of the critical need for robust security controls in legacy systems and the importance of maintaining current security posture through regular patch management and vulnerability assessment programs.