CVE-2002-1124 in Purity
Summary
by MITRE
Multiple buffer overflows in purity 1-16 allow local users to gain privileges and modify high scores tables.
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Analysis
by VulDB Data Team • 06/29/2024
The vulnerability described in CVE-2002-1124 represents a critical security flaw affecting the purity 1-16 software system, which is commonly used for maintaining high score tables in gaming applications. This issue manifests through multiple buffer overflow conditions that occur within the software's handling of user input data, specifically when processing score entries and related information. The vulnerability exists at the core level of the application's memory management, where insufficient bounds checking allows attackers to write beyond allocated memory regions. These buffer overflows are particularly dangerous because they occur in a context where the application maintains sensitive high score data, which typically requires elevated privileges to modify. The flaw enables local users to exploit the application's memory handling mechanisms and potentially escalate their privileges to gain administrative access to the system.
The technical implementation of this vulnerability involves the exploitation of improper input validation within the purity application's score handling routines. When users submit high scores or related data, the application fails to properly validate the length and content of input parameters before copying them into fixed-size memory buffers. This classic buffer overflow condition allows malicious input to overwrite adjacent memory locations, potentially corrupting critical program data or even executing arbitrary code. The vulnerability is particularly concerning because it affects the high score table modification functionality, which typically requires elevated privileges to access and modify. Attackers can leverage this weakness to not only corrupt score data but also potentially gain root or administrator privileges on the system. The memory corruption occurs in areas that control access permissions and authentication mechanisms, making the privilege escalation possible through carefully crafted input sequences.
The operational impact of CVE-2002-1124 extends beyond simple data corruption, as local attackers can exploit this vulnerability to gain unauthorized access to system resources and potentially compromise the entire system. The vulnerability affects the integrity and confidentiality of high score data, which may contain sensitive information about user achievements and gaming performance. In environments where purity 1-16 is used for competitive gaming or tournament scoring, this vulnerability could allow malicious users to manipulate results and gain unfair advantages. The privilege escalation aspect of this vulnerability means that attackers can potentially access restricted system resources, modify critical files, and establish persistent access to the compromised system. This represents a significant risk to system security, particularly in multi-user environments where gaming applications are frequently used for competitive purposes.
Mitigation strategies for this vulnerability require immediate patching of the purity 1-16 application to address the buffer overflow conditions through proper input validation and bounds checking mechanisms. System administrators should implement the latest security updates provided by the software vendor to resolve the memory handling issues that enable these exploits. Additional defensive measures include implementing proper access controls to limit local user privileges, monitoring high score table modifications for suspicious activity, and conducting regular security assessments of gaming applications. The vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. From an attack perspective, this vulnerability maps to ATT&CK technique T1068, which involves the exploitation of local privileges for privilege escalation, and T1059, which covers command and scripting interfaces for executing malicious code. Organizations should also consider implementing application whitelisting policies to restrict execution of untrusted gaming applications and establish secure coding practices for future development of similar applications.