CVE-2019-1688

CVE-2019-1688 describes a critical vulnerability in Cisco Network Assurance Engine (NAE) Release 3.0(1) that allows unauthenticated, local attackers to gain unauthorized access or cause a Denial of Service (DoS). This flaw stems from a weakness in the password management system, specifically the use of a default administrator password on new installations. An attacker could exploit this by authenticating via the CLI, potentially viewing sensitive information or causing a server outage. The vulnerability carries a CVSS v3.1 score of 7.1 (HIGH), indicating a local attack vector with low complexity, requiring no user interaction, and leading to high confidentiality and availability impacts. While the EPSS score is low, suggesting a lower probability of exploitation, the FAUCET Risk Score of 45/100 still highlights its significant risk. Currently, there is no evidence of active exploitation (KEV: No), and no public exploit code is available on platforms like Metasploit, Nuclei, or ExploitDB. Despite this, the vulnerability has garnered some community discussion and media coverage, including an article from BleepingComputer, indicating awareness within the cybersecurity community.