Our management has just inquired whether running credential scans on network devices would be beneficial. I said it might not be because there's probably not a whole lot of checks for those that require credentials. Is there any documentation or a way to determine how many/which checks for Cisco devices require credentials? Also, many of the checks state they're for a specific router/switch and wouldn't apply to us. If there's any info such as the model of the device affected, that would be beneficial as well.
This KB tells you what OS Flavor / version the MVM SSH Module can authenticate to.
Your other question is a little more complex.
If you go to scans / new scan. Choose the Shell Advanced Scan Template
Then go to the Settings Tab, Vuln Selection
Then look at Vuln Selections for the following 2 categories, it should give you an idea about how many Cisco checks we have that require credentials (Both the following categories require credentials):
Cisco IOS Patches and Hotfixes
I hope that helps!