CVE-2000-0533 in Workshop Debugger And Performance Tools
Summary
by MITRE
Vulnerability in cvconnect in SGI IRIX WorkShop allows local users to overwrite arbitrary files.
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Analysis
by VulDB Data Team • 04/09/2019
The vulnerability identified as CVE-2000-0533 resides within the cvconnect component of SGI IRIX WorkShop, a software development environment for the SGI IRIX operating system. This flaw represents a local privilege escalation vulnerability that enables attackers with low-privilege user access to manipulate file system permissions and overwrite arbitrary files on the system. The vulnerability stems from improper handling of file operations within the cvconnect utility, which is designed to facilitate communication between different components of the development environment. The issue manifests when the application fails to properly validate file paths or implement adequate access controls during file manipulation operations, creating a potential attack vector for local adversaries.
Technical exploitation of this vulnerability relies on the attacker's ability to manipulate the cvconnect utility's file handling mechanisms to target specific system files or user data. The flaw likely involves insufficient input validation or path traversal checks that allow an attacker to specify arbitrary file locations for overwrite operations. This type of vulnerability falls under the Common Weakness Enumeration category of weak file permissions and inadequate file access controls, typically classified as CWE-276. The vulnerability's impact is particularly concerning in development environments where multiple users may have access to shared systems, as it could enable attackers to modify critical system files, development libraries, or user data without proper authorization.
The operational impact of CVE-2000-0533 extends beyond simple file overwriting capabilities, as it can potentially lead to broader system compromise through privilege escalation or data corruption. Attackers could leverage this vulnerability to replace system binaries with malicious versions, modify configuration files to redirect system behavior, or overwrite user data to cause denial of service or data loss. The vulnerability's local nature means that exploitation requires physical access or existing user credentials, but once exploited, the attacker gains the ability to modify system files with elevated privileges. This aligns with ATT&CK framework technique T1068, which covers local privilege escalation through improper file permissions or access controls, and T1486, which addresses data manipulation through file system modifications.
Mitigation strategies for this vulnerability should focus on implementing proper access controls and file permission management within the SGI IRIX WorkShop environment. System administrators should ensure that cvconnect and related utilities are properly configured with restrictive file permissions and that file paths are validated before processing. The recommended approach includes applying the vendor-provided security patches or updates that address the specific file handling flaws in cvconnect. Additionally, implementing least privilege principles for user accounts and monitoring file system changes can help detect unauthorized modifications. Regular security audits of development environments should include checks for similar file permission vulnerabilities, and system hardening practices should enforce proper file ownership and access controls to prevent unauthorized file overwrites. Organizations should also consider implementing file integrity monitoring solutions that can alert administrators to suspicious file modification patterns and maintain detailed audit logs of file system operations within development environments.