Splunk Search

issue with eval

rbw78
Communicator

Hello,

I'm trying to do an arithmetic operation between 2 values i get with a stats function.
I want to divide the number of cvss by the number of hosts.
Here is my serach.

sourcetype=nessus N_cvss>9 N_dnt=0 | rex "(?i)^(?:[^\t]*\t){2}(?P<host>[^\t]+)" | rex "(?i)^(?:[^\t]*\t){10}(?P<cvss>[^\t]+)" | stats dc(host) as nb_host | stats c(cvss) as nb_cvss | eval cvss_host=nb_cvss/nb_host

My values are correctly affected to fields nb_cvss and nb_host but when i use the eval function i have no result.
I also tried the "eventstats" in place of "stats" but the result is the same.

How could i get the result i want ?

Tags (2)
0 Karma

rbw78
Communicator

Well, something is wrong in my search.

I have the values nb_cvss and nb_cvss with also cvss_host in my final result.
I only want cvss_host in my final result for doing a chart on the which one i can his evolution of it for each months.

So i'm trying to use timechart but it doesn't work.

sourcetype=nessus N_cvss>9 N_dnt=0 | rex "(?i)^(?:[^\t]*\t){2}(?P<host>[^\t]+)" | rex "(?i)^(?:[^\t]*\t){10}(?P<cvss>[^\t]+)" | timechart span=1m eval(c(cvss) / dc(host))

it says my eval expression must be renamed but i don't know why, it should works ...

0 Karma

kristian_kolb
Ultra Champion

I don't really know if it affects the results, but you do not need two stats commands.
Does this produce the desired result?

sourcetype=nessus N_cvss>9 N_dnt=0 | rex "(?i)^(?:[^\t]*\t){2}(?P<host>[^\t]+)" | rex "(?i)^(?:[^\t]*\t){10}(?P<cvss>[^\t]+)" | stats dc(host) as nb_host c(cvss) as nb_cvss | eval cvss_host=nb_cvss/nb_host

/k

0 Karma

rbw78
Communicator

You resolved my issue, only one stats function is needed, thanks 🙂

0 Karma
Get Updates on the Splunk Community!

Adoption of RUM and APM at Splunk

    Unleash the power of Splunk Observability   Watch Now In this can't miss Tech Talk! The Splunk Growth ...

March Community Office Hours Security Series Uncovered!

Hello Splunk Community! In March, Splunk Community Office Hours spotlighted our fabulous Splunk Threat ...

Stay Connected: Your Guide to April Tech Talks, Office Hours, and Webinars!

Take a look below to explore our upcoming Community Office Hours, Tech Talks, and Webinars in April. This post ...