Getting Data In

strip sensitive data before indexing

zhatsispgx
Path Finder

Hi all,

We run several tools in our environment for network inspection and the logging it provides logs things like NTLM creds, HTTP Basic Auth etc. We'd like to strip this data off before indexing, or at least 'sanitize' it so we dont index usernames/passwords. Can anyone point me in the right direction to solve this?

Example data:

{
"timestamp":"2018-04-04T09:00:08.085563-0600",
"flow_id":151014950299099,
"in_iface":"asdfasdf",
"event_type":"alert",
"vlan":10,
"src_ip":"x.x.x.x",
"src_port":60130,
"dest_ip":"166.70.63.169",
"dest_port":443,
"proto":"TCP",
"tx_id":0,
"alert":{
"action":"allowed",
"gid":1,
"signature_id":2013928,
"rev":4,
"signature":"ET POLICY HTTP traffic on port 443 (PROPFIND)",
"category":"Potentially Bad Traffic",
"severity":2
},
"http":{
"hostname":"www.somesite.org",
"url":"\/things\/remote.php\/webdav\/",
"http_user_agent":"Mozilla\/5.0 (Linux) mirall\/2.3.3",
"http_content_type":"application\/xml",
"http_method":"PROPFIND",
"protocol":"HTTP\/1.1",
"status":207,
"length":382
},
"payload_printable":"PROPFIND \/owncloud\/remote.php\/webdav\/ HTTP\/1.1\r\n
Depth: 0\r\n
Authorization: Basic REDACTEDBASE64PASSWORDHERE==\r\n
User-Agent: Mozilla\/5.0 (Linux) mirall\/2.3.3\r\n
Accept: \/\r\n
Content-Type: text\/xml; charset=utf-8\r\nCookie: oc_sessionPassphrase=redacted \r\nContent-Length: 105\r\n
Connection: Keep-Alive\r\n
Accept-Encoding: gzip, deflate\r\nAccept-Language: en-US,*\r\n
Host: www.somesite.org\r\n\r\n\n\n \n \n <\/d:prop>\n<\/d:propfind>\n",
"stream":1
}

0 Karma
1 Solution

richgalloway
SplunkTrust
SplunkTrust

richgalloway
SplunkTrust
SplunkTrust

See http://docs.splunk.com/Documentation/Splunk/7.0.3/Data/Anonymizedata

---
If this reply helps you, Karma would be appreciated.
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

May 2026 Splunk Expert Sessions: Security & Observability

Level Up Your Operations: May 2026 Splunk Expert Sessions Whether you are refining your security posture or ...

Network to App: Observability Unlocked [May & June Series]

In today’s digital landscape, your environment is no longer confined to the data center. It spans complex ...

SPL2 Deep Dives, AppDynamics Integrations, SAML Made Simple and Much More on Splunk ...

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...