CVE-2002-1836 in Docutech 6110
Summary
by MITRE
The default configuration of Xerox DocuTech 6110 and DocuTech 6115 exports certain NFS shares to the world with world writable permissions, which may allow remote attackers to modify sensitive files.
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Analysis
by VulDB Data Team • 07/04/2024
The vulnerability identified in CVE-2002-1836 affects the Xerox DocuTech 6110 and DocuTech 6115 multifunction devices, which are widely deployed in enterprise environments for printing and document management tasks. These devices are network-connected systems that provide various services including network file sharing through the Network File System protocol. The flaw lies in the default configuration of these devices where certain NFS shares are exported without proper access controls, specifically allowing world-writable permissions. This configuration represents a fundamental security misconfiguration that violates basic principles of network security and access control.
The technical implementation of this vulnerability stems from the improper default settings of the NFS service running on these devices. When NFS shares are exported with world-writable permissions, any remote attacker who can reach the device through the network can gain write access to sensitive files stored on the device's file system. This misconfiguration creates a direct path for privilege escalation and data manipulation attacks. The vulnerability specifically relates to CWE-276, which addresses incorrect default permissions, and CWE-732, which deals with incorrect permissions for critical resources. The flaw is particularly dangerous because it allows for persistent modification of system files, configuration data, and potentially sensitive documents that may be processed through these devices.
The operational impact of this vulnerability extends beyond simple unauthorized file modification. Attackers can exploit this weakness to install malicious software, modify system configuration files, or corrupt critical data stored on the device. This could lead to service disruption, data loss, or even complete device compromise. The vulnerability affects enterprise environments where these devices are commonly deployed, potentially allowing attackers to gain persistent access to network resources and use the devices as entry points for broader network infiltration. The implications are significant for organizations that rely on these devices for document processing, as they may inadvertently provide attackers with a means to compromise their document management systems and potentially gain access to sensitive business information.
Organizations should immediately implement remediation measures including disabling unnecessary NFS shares, configuring proper access controls with restricted permissions, and ensuring that only authorized users and systems can access the device's file shares. The recommended mitigations align with the ATT&CK framework's defense in depth principles, particularly focusing on privilege escalation and persistence tactics. Network segmentation should be implemented to limit access to these devices, and regular security audits should be conducted to verify proper configuration settings. Additionally, organizations should consider implementing network monitoring solutions to detect unauthorized access attempts to these vulnerable services. The vulnerability highlights the critical importance of secure default configurations and proper security hardening of network-connected devices, as outlined in industry standards such as NIST SP 800-53 and ISO 27001 requirements for secure system configuration management.