A vulnerability in the Cisco Catalyst SD-WAN suite enables the cleartext storage of sensitive data, posing a significant risk of credential and configuration exposure to authenticated attackers.

This is a cleartext storage of sensitive information issue (CWE-312) that can be triggered by a remote, authenticated user with low privileges (PR:L). The attacker does not require user interaction to exploit this flaw.

The exposure of sensitive information stored in cleartext can lead to a complete compromise of the SD-WAN management infrastructure. With a CVSS score of 8.8, this high-severity vulnerability allows an attacker to gain elevated access or extract configuration secrets, potentially impacting the confidentiality, integrity, and availability of the entire software-defined network.

Immediate Action: Consult the official Cisco security advisory for the specific patch version corresponding to your deployment and apply the update immediately.

Proactive Monitoring: Review system and access logs for unusual administrative activity or unauthorized attempts to access configuration files and sensitive directories.

Compensating Controls: Implement strict access control lists to limit the number of users who can interact with the SD-WAN management interface, thereby reducing the pool of potential attackers.

Public Exploit Available: Unknown

Given the high CVSS score and the critical nature of SD-WAN infrastructure, organizations must prioritize patching this vulnerability. Administrators should verify their current version against the affected list and schedule maintenance windows to apply the necessary vendor-provided security updates to prevent potential credential theft.