CVE-1999-1126 in Resource Manager
Summary
by MITRE
Cisco Resource Manager (CRM) 1.1 and earlier creates certain files with insecure permissions that allow local users to obtain sensitive configuration information including usernames, passwords, and SNMP community strings, from (1) swim_swd.log, (2) swim_debug.log, (3) dbi_debug.log, and (4) temporary files whose names begin with "DPR_".
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Analysis
by VulDB Data Team • 04/20/2026
Cisco Resource Manager version 1.1 and earlier suffers from a critical privilege escalation vulnerability stemming from insecure file permissions that exposes sensitive configuration data to local attackers. This vulnerability resides in the application's failure to properly secure log files and temporary data structures, creating persistent attack vectors that persist across system sessions. The affected files include swim_swd.log, swim_debug.log, dbi_debug.log, and temporary files prefixed with "DPR_", all of which contain highly sensitive information including administrative credentials, user accounts, and network management parameters that should remain protected from unauthorized access.
The technical flaw manifests through inadequate access control mechanisms within the Cisco Resource Manager application where log files and temporary storage areas are created with overly permissive Unix-style file permissions. These insecure configurations typically grant read access to all local users on the system, allowing attackers to directly examine and extract confidential information without requiring elevated privileges or authentication. The vulnerability represents a classic case of insufficient privilege separation and inadequate file system security controls that violate fundamental security principles of least privilege and access control.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable full system compromise when combined with other attack vectors. Local attackers can leverage the exposed credentials to escalate privileges, gain unauthorized network access, or conduct further reconnaissance against connected systems. The presence of SNMP community strings in these files particularly increases risk as they provide direct access to network management protocols that could enable attackers to monitor or manipulate network infrastructure. This vulnerability directly maps to CWE-732: Insufficient Protection of Sensitive Information and aligns with ATT&CK technique T1003.001: OS Credential Dumping and T1005: Data from Local System.
Security mitigations for this vulnerability require immediate implementation of proper file permission controls on all affected log and temporary files. System administrators should ensure that sensitive log files are created with restrictive permissions such as 600 or 640, preventing unauthorized access while maintaining necessary write capabilities for the application. Additionally, regular security audits should verify that no sensitive information is written to insecurely configured temporary files, and automated monitoring systems should be implemented to detect unauthorized file access attempts. The vulnerability also necessitates a review of the application's temporary file creation processes to ensure that all generated files are properly secured from the moment of creation. Organizations should implement comprehensive logging and monitoring for file system access patterns to detect potential exploitation attempts and maintain audit trails for forensic analysis.