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Cisco warns of five SD-WAN security weaknesses

March 19, 2020

Cisco has issued five warnings about security weaknesses in its SD-WAN offerings, three of them on the high-end of the vulnerability scale.

The worst problem is with the command-line interface (CLI) of its SD-WAN Solution software where a weakness could let a local attacker inject arbitrary commands that are executed with root privileges, Cisco wrote.

An attacker could exploit this vulnerability – which has a 7.8 out if 10 on the Common Vulnerability Scoring System – by authenticating to the device and submitting crafted input to the CLI utility. The attacker must be authenticated to access the CLI utility. The vulnerability is due to insufficient input validation, Cisco wrote.

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