CVE-2003-1010 in Mac OS X Server
Summary
by MITRE
Unknown vulnerability in fs_usage in Mac OS X 10.2.8 and 10.3.2 and Mac OS X Server 10.2.8 and 10.3.2 allows local users to gain privileges via unknown attack vectors.
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Analysis
by VulDB Data Team • 06/29/2021
The vulnerability identified as CVE-2003-1010 represents a privilege escalation flaw within the fs_usage utility component of Mac OS X versions 10.2.8 and 10.3.2, along with their corresponding server variants. This issue resides in the core file system monitoring functionality that is integral to system administration and debugging operations. The fs_usage tool serves as a diagnostic utility that tracks file system operations and provides insights into system resource consumption patterns. The vulnerability's classification as unknown attack vectors indicates that the specific technical mechanism enabling privilege escalation was not fully documented or understood at the time of the initial report. This lack of detailed information regarding the attack surface makes the vulnerability particularly concerning for security professionals as it suggests potential exploitation pathways that may not have been comprehensively analyzed.
The technical flaw within fs_usage likely involves improper privilege handling or access control mechanisms that allow local users to manipulate the utility's execution environment in ways that bypass normal security boundaries. This could manifest through various exploitation techniques including but not limited to race conditions, buffer overflows, or improper input validation that enables privilege elevation. The vulnerability operates at the system level where local users can potentially leverage the utility's intended functionality to execute malicious code with elevated privileges. The attack vector's ambiguity suggests that multiple pathways may exist for exploitation, potentially involving file system manipulation, process injection, or environment variable tampering that allows unauthorized privilege escalation.
The operational impact of this vulnerability extends beyond simple privilege escalation as it represents a fundamental security weakness in the operating system's core utilities. Local users who can exploit this vulnerability gain the ability to execute arbitrary code with elevated privileges, potentially allowing them to access restricted system resources, modify critical system files, or establish persistent access to the compromised system. This type of vulnerability directly undermines the principle of least privilege that is fundamental to secure system design and can enable attackers to move laterally within a network or escalate their access to sensitive administrative functions. The vulnerability affects both desktop and server variants of the affected Mac OS X releases, indicating a widespread impact across the platform's user base.
Mitigation strategies for this vulnerability should focus on immediate system updates and patches provided by Apple to address the underlying privilege escalation mechanism. Organizations should implement comprehensive monitoring of system utilities and their execution patterns to detect potential exploitation attempts. The principle of least privilege should be enforced by restricting access to diagnostic utilities like fs_usage to only authorized administrative users. Security configurations should include regular audits of system utilities and their associated permissions, with particular attention to any unexpected privilege escalation behaviors. Additionally, system hardening measures should include disabling unnecessary system utilities for non-administrative users and implementing proper file system permissions that prevent unauthorized modification of critical system components. This vulnerability aligns with CWE-276, which addresses improper permissions and access control, and may map to ATT&CK techniques involving privilege escalation and execution through system utilities.