CVE-1999-1126 is a vulnerability found in Cisco Resource Manager (CRM) version 1.1 and earlier. The issue arises because the software creates certain log and temporary files with insecure file permissions. These files include swim_swd.log, swim_debug.log, dbi_debug.log, and temporary files beginning with "DPR_". Due to the weak permissions, local users on the affected system can access these files and extract sensitive configuration information such as usernames, passwords, and SNMP community strings. This exposure compromises confidentiality but does not directly affect integrity or availability. The vulnerability requires local access to the system, meaning an attacker must already have some level of access to the host machine to exploit it. There is no indication that remote exploitation is possible, nor is user interaction beyond local access required. The CVSS score is low (2.1), reflecting the limited attack vector (local access) and the impact being limited to confidentiality. No patches are available for this vulnerability, and there are no known exploits in the wild. Given the age of the vulnerability (published in 1999) and the product version affected, this issue primarily concerns legacy systems still running outdated Cisco Resource Manager versions.

For European organizations, the impact of this vulnerability is primarily on internal security posture rather than external threat exposure. If legacy Cisco Resource Manager 1.1 or earlier versions are still in use within network management environments, local users or insiders could leverage this vulnerability to obtain sensitive credentials and configuration data. This could facilitate further internal reconnaissance or privilege escalation. However, since exploitation requires local access, the risk from external attackers is minimal unless they have already compromised internal systems. The exposure of SNMP community strings and passwords could lead to broader network management compromise if attackers use this information to access network devices. Organizations with strict internal access controls and network segmentation will be less affected. Nonetheless, the vulnerability highlights the risk of outdated software and poor file permission management in critical infrastructure components.

Given that no official patch is available, European organizations should take the following specific steps: 1) Identify and inventory all instances of Cisco Resource Manager 1.1 or earlier in their environment. 2) Where possible, upgrade to a supported and updated version of Cisco Resource Manager or replace it with modern network management tools that follow secure file permission practices. 3) Restrict local access to systems running vulnerable versions to trusted administrators only, enforcing strict access controls and monitoring. 4) Manually review and correct file permissions on the affected log and temporary files to ensure they are only accessible by authorized users (e.g., owner and root). 5) Implement host-based intrusion detection to alert on unauthorized access attempts to these files. 6) Regularly audit local user accounts and privileges to minimize the risk of insider threats. 7) Consider network segmentation to isolate management systems from general user environments, reducing the likelihood of local access by untrusted users.