A vulnerability in a REST API endpoint and web-based management interface of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an authenticated, remote attacker with read-only privileges to execute arbitrary SQL commands on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to a specific REST API endpoint or web-based management interface. A successful exploit could allow the attacker to read, modify, or delete arbitrary data on an internal database, which could affect the availability of the device.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.