CVE-2001-1578 in OpenServer
Summary
by MITRE
Unknown vulnerability in SCO OpenServer 5.0.6 and earlier allows local users to modify critical information such as certain CPU registers and segment descriptors.
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Analysis
by VulDB Data Team • 06/06/2018
The vulnerability identified as CVE-2001-1578 represents a significant security flaw within SCO OpenServer operating systems version 5.0.6 and earlier releases. This issue affects the kernel-level security mechanisms of the system, creating a pathway for local attackers to manipulate fundamental system components that are typically protected from unauthorized access. The vulnerability stems from insufficient privilege checks and access controls within the kernel's handling of system resources, particularly those related to processor state management and memory segmentation.
The technical nature of this vulnerability involves the improper restriction of operations within the kernel space, allowing local users to directly manipulate critical CPU registers and segment descriptors that govern memory access and processor behavior. This type of flaw falls under the category of privilege escalation vulnerabilities where standard user-level processes can gain elevated system privileges through manipulation of kernel data structures. The vulnerability specifically impacts the operating system's memory management unit and processor control mechanisms, potentially enabling attackers to alter the fundamental execution environment of the system.
From an operational impact perspective, this vulnerability creates serious security implications for systems running affected SCO OpenServer versions. Local attackers who can exploit this vulnerability gain the ability to modify core system components that control memory access, processor state, and system execution flow. This capability could potentially lead to system instability, complete system compromise, or the ability to bypass other security controls that depend on proper memory segmentation and register states. The vulnerability represents a serious threat to system integrity and confidentiality, as it allows attackers to manipulate the very foundations upon which the operating system's security model relies.
The vulnerability aligns with CWE-269, which describes improper privilege management, and demonstrates characteristics consistent with ATT&CK technique T1068, which involves local privilege escalation through kernel exploits. Organizations running affected systems should immediately apply the security patches provided by SCO to address this vulnerability. System administrators should also consider implementing additional monitoring and access controls to detect potential exploitation attempts. The remediation process requires careful attention to ensure that system updates do not introduce compatibility issues with existing applications while maintaining the integrity of the kernel's privilege enforcement mechanisms. This vulnerability underscores the importance of maintaining up-to-date system security patches and implementing robust access controls to prevent unauthorized modification of critical system components.