Splunk Search

Data masking

svemurilv
Path Finder

HI ,
i want to masking the cookie value in the the log file i just write the regx but its not displaying the data before the masking vale.

2017-07-11 11:51:46,740 tid:hhReD803VBtTqw2uFsQVhPI35r0 DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF=hashedValue:hhReD803VBtTqw2uFsQVhPI35r0; path=/; maxAge=-1; domain=null}

2017-07-11 11:51:46,740 tid:hhReD803VBtTqw2uFsQVhPI35r0 DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF_JWT=eyJhbGciOiJSUzI1NiIsImtpZCI6IjIifQ.eyJzY29wZSI6WyJlZGl0Il0sImNsaWVudF9pZCI6IkNsaWVudFBpbmciLCJHVUlEIjoiMTNjNTY3MTAtYzg1Yy00ZjY3LWJmZjYtM2EyYzM0Njk2MjFjIiwiYWNjb3VudElEIjoiQU41OTM3OTgtNTMzNi0wNTAyLTM3MTEtSkkwMTIwMTZLSTk4Iiwibm9kZUlkeCI6IjEiLCJleHAiOjE0OTk3OTU1MDZ9.XaL4OaNWXT1p_ADnPYLFHN1Jl_fLlHEmbG9Q25YaMF8iRJMPYJuWF-2dxZ9oMJUyZiPbEdQzkdRcGvWvE0xl5faM-LKB2g-r_6bTt1ArLaLTt3uzXZ0GX5V6OlQyvHlUZPFlvKQpkC_3Sb_Gg9p4C4vee-oPHNpMm721ba_cUM5MC7VHcmepQQi3zP0zYh2U3kjTa8D88pAW1mmJF1INvhZ_T3tJMMqEG5YnxUfE75ETJY9brS7KF3VAC6GyEhpbw2QSJBvkj6FmnyGM7O7xn84LGXUgYgZiHMuNXQb0so6-Zpy9Ax88bDi2QMo59mj6nGM4zuyq6IqrBGJonDJ_5g; path=/; maxAge=-1; domain=}

code:

| rex mode=sed  "s/[^{]+{(\w+)=([^};]*)/=1XXXXXX/g" 
0 Karma
1 Solution

sbbadri
Motivator

Try this

| makeresults | eval test="2017-07-11 11:51:46,740 tid:hhReD803VBtTqw2uFsQVhPI35r0 DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF=hashedValue:hhReD803VBtTqw2uFsQVhPI35r0; path=/; maxAge=-1; domain=null}" | table test | rex field=test mode=sed "s/cookies:\s(\S+.*)/cookies: =1XXXXXX/g"

View solution in original post

sbbadri
Motivator

| makeresults | eval test="2017-07-11 11:51:46,740 tid:hhReD803VBtTqw2uFsQVhPI35r0 DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF=hashedValue:hhReD803VBtTqw2uFsQVhPI35r0; path=/; maxAge=-1; domain=null}" | table test | rex field=test mode=sed "s/cookies:\s(\S+.*)/cookies: =1XXXXXX/g"

0 Karma

sbbadri
Motivator

Try this

| makeresults | eval test="2017-07-11 11:51:46,740 tid:hhReD803VBtTqw2uFsQVhPI35r0 DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF=hashedValue:hhReD803VBtTqw2uFsQVhPI35r0; path=/; maxAge=-1; domain=null}" | table test | rex field=test mode=sed "s/cookies:\s(\S+.*)/cookies: =1XXXXXX/g"

svemurilv
Path Finder

Hi ,
here i just want to mask only the Cookie session values oly not other string , even i need to tesxt "adding Cookie{PF_JWT=" and the end of the line laso "path=/; maxAge=-1; domain=}"

2017-07-12 09:47:57,316 tid:mq2JlWyVI8JiL5AYxJRn28ZFLNQ DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF_JWT=eyJhbGciOiJSUzI1NiIsImtpZCI6IjIifQ.eyJzY29wZSI6WyJlZGl0Il0sImNsaWVudF9pZCI6IkNsaWVudFBpbmciLCJHVUlEIjoiMTBiMDRjNGYtZWUyOC00M2JjLWE3YWItNjc1YjUxZWRlZWFhIiwiYWNjb3VudElEIjoiS1o4MzU4ODktODkzMi0xNTA0LTMwMTEtRkk1MTIwMTRGTjg5Iiwibm9kZUlkeCI6IjEiLCJleHAiOjE0OTk4NzQ0Nzd9.NmeJEY9BLpXyBZhRblUETWeh_7pAczHOTHKJaS1r3DMy0UL0HNe-EVMm40t1Hh27iSoWup6WqY_0XXapLQkglFUpUaLW_gygoieK_lB09iKiMjCUZDVxoIoFHuqGRMErArxNvyR2PPETrX4p7a_7Q0U5CYHMIYbiLSzBIuhpabBsgaW1u3lJlA-Ry08oX_BdQ32XRRRznqi1hImjZfCQ5Ok84t4ygwatq5lT24zQoEjHCVh37Mr2G00WfL_0i6T9sNsROyk5ZoprScE4VLIa8LPlGeTspUAoQ1-LFwiM4BNX7Q58mW_a0B3bhWkzJUPeJUhd8bvzLLDqzxfu9nsZRA; path=/; maxAge=-1; domain=}

only bold code should mask

0 Karma

sbbadri
Motivator

Try this,

| makeresults | eval test="2017-07-12 09:47:57,316 tid:mq2JlWyVI8JiL5AYxJRn28ZFLNQ DEBUG [org.sourceid.servlet.HttpServletRespProxy] flush cookies: adding Cookie{PF_JWT=eyJhbGciOiJSUzI1NiIsImtpZCI6IjIifQ.eyJzY29wZSI6WyJlZGl0Il0sImNsaWVudF9pZCI6IkNsaWVudFBpbmciLCJHVUlEIjoiMTBiMDRjNGYtZWUyOC00M2JjLWE3YWItNjc1YjUxZWRlZWFhIiwiYWNjb3VudElEIjoiS1o4MzU4ODktODkzMi0xNTA0LTMwMTEtRkk1MTIwMTRGTjg5Iiwibm9kZUlkeCI6IjEiLCJleHAiOjE0OTk4NzQ0Nzd9.NmeJEY9BLpXyBZhRblUETWeh_7pAczHOTHKJaS1r3DMy0UL0HNe-EVMm40t1Hh27iSoWup6WqY_0XXapLQkglFUpUaLW_gygoieK_lB09iKiMjCUZDVxoIoFHuqGRMErArxNvyR2PPETrX4p7a_7Q0U5CYHMIYbiLSzBIuhpabBsgaW1u3lJlA-Ry08oX_BdQ32XRRRznqi1hImjZfCQ5Ok84t4ygwatq5lT24zQoEjHCVh37Mr2G00WfL_0i6T9sNsROyk5ZoprScE4VLIa8LPlGeTspUAoQ1-LFwiM4BNX7Q58mW_a0B3bhWkzJUPeJUhd8bvzLLDqzxfu9nsZRA; path=/; maxAge=-1; domain=}" |rex field=test mode=sed "s/Cookie{PF_JWT=`(\S+)/Cookie{PF_JWT=xxxxxx;/g"

0 Karma

skoelpin
SplunkTrust
SplunkTrust

I'm not sure the question your asking.. You want to mask the data but the data is not present in the logs?

Your sed method is only masking data at search time. If another user runs a search then the cookie data will be available. If you want to mask the data at index time (i.e. the data will be masked if anyone searches for it), you should do the following

props.conf

 [sourcetype]
 TRANSFORMS-1card = cookie_anon

transforms.conf

[cookie_anon]
 REGEX = [^{]+{(\w+)=([^};]*)
 DEST_KEY = _raw
 FORMAT = 1XXXXXX

Make sure to restart splunkd after making these changes

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!

Where Innovation Takes Flight: The Splunk4Aviation Flight Sim Lands at .conf26

If you hear someone at .conf26 shouting "gear down, GEAR DOWN" across the show floor, you have found us.  The ...

Turn Cisco Telemetry Into Action with Cisco Data Fabric, powered by the Splunk ...

The surge in machine data is already hitting enterprise budgets, and the agentic era will only intensify it. ...

Persistent Queue at TcpOut — One of Splunk's Most Practical Features

Splunk introduced persistent queueing at the tcpout layer as one of the most practical resilience features in ...