CVE-2002-0103 in Application Server Web Cache
Summary
by MITRE
An installer program for Oracle9iAS Web Cache 2.0.0.x creates executable and configuration files with insecure permissions, which allows local users to gain privileges by (1) running webcached or (2) obtaining the administrator password from webcache.xml.
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Analysis
by VulDB Data Team • 09/23/2025
The vulnerability identified as CVE-2002-0103 affects Oracle9iAS Web Cache 2.0.0.x installer programs, representing a critical privilege escalation flaw that exploits insecure file permissions during installation. This vulnerability specifically targets the installation process where executable and configuration files are created with overly permissive access controls, allowing local attackers to exploit these weaknesses for unauthorized system access. The installer program fails to properly enforce security boundaries during deployment, creating an environment where malicious users can leverage the compromised permissions to elevate their privileges. This type of vulnerability falls under the category of insecure permissions as defined by CWE-732, which describes improper permissions that allow unauthorized access to system resources.
The technical implementation of this vulnerability stems from the installer's failure to properly set file system permissions for critical components including the webcached executable and the webcache.xml configuration file. When Oracle9iAS Web Cache 2.0.0.x is installed, the installer creates files with world-readable and world-executable permissions, which violates fundamental security principles for system administration tools. The webcached executable, when run with elevated privileges, provides a direct attack vector for privilege escalation, while the webcache.xml file contains sensitive administrative credentials that can be extracted by local users with appropriate access. This vulnerability directly impacts the principle of least privilege and demonstrates poor security implementation in the installation process.
The operational impact of CVE-2002-0103 extends beyond simple privilege escalation to potentially compromise entire web server infrastructures. Local users who exploit this vulnerability can gain administrative access to the Oracle Web Cache service, enabling them to modify cache configurations, access cached content, or potentially redirect traffic through malicious cache entries. The ability to extract administrator passwords from the webcache.xml file creates additional attack vectors for credential theft and further system compromise. Attackers can leverage this vulnerability to perform persistent modifications to the web cache configuration, potentially leading to data exfiltration or service disruption. This vulnerability aligns with ATT&CK technique T1068 which describes local privilege escalation through insecure permissions and file system weaknesses.
The exploitation of this vulnerability typically requires local system access, making it a low-impact but high-consequence issue for systems where local accounts are not properly secured. The attack surface is limited to systems with the vulnerable Oracle9iAS Web Cache installation, but the potential for privilege escalation makes it particularly dangerous in environments where multiple users share system resources. Organizations should consider this vulnerability as part of their broader security posture assessment, particularly in environments where physical security controls are weak or where users have legitimate access to systems but may not be properly monitored. The vulnerability also highlights the importance of proper file system permission management and the need for security-conscious installation procedures. Mitigation efforts should include immediate patching of the Oracle9iAS Web Cache software, manual permission correction for existing installations, and implementation of regular security audits to identify similar insecure permission configurations across the enterprise.