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<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I wanted to send this out to see if anyone has encountered this situation before and, if so, how you handled it. We send our auditd logs to a remote central logging server. Is there any way to decode the hex encoded fields before sending
them along? Similar to the ausearch [-i] flag which interprets the encoded value?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For example, the “data” field in a USER_TTY event:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">type=USER_TTY msg=audit(1516365981.138:13125): pid=7161 uid=0 auid=1007 ses=65 data=73657276696365206175646974642073746F70<o:p></o:p></p>
<p class="MsoNormal">type=USER_TTY msg=audit(1516367294.919:13331): pid=7161 uid=0 auid=1007 ses=65 data=73797374656D63746C2073746F7020617564697464<o:p></o:p></p>
<p class="MsoNormal">type=USER_TTY msg=audit(1516367648.904:13375): pid=7161 uid=0 auid=1007 ses=65 data=6964206A6F7368616D6D6F6E73<o:p></o:p></p>
<p class="MsoNormal">type=USER_TTY msg=audit(1516367664.832:13378): pid=7161 uid=0 auid=1007 ses=65 data=636174202F6574632F706173737764207C2067726570206A6F7368616D6D6F6E73<o:p></o:p></p>
<p class="MsoNormal">type=USER_TTY msg=audit(1516367715.041:13388): pid=7161 uid=0 auid=1007 ses=65 data=636174202F7661722F6C6F672F61756469742F61756469742E6C6F67207C20677265702022555345525F54545922<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have the following configured in our /etc/rsyslog.conf file:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">:programname, isequal, "audispd" @SERVER_NAME:514<o:p></o:p></p>
<p class="MsoNormal">:programname, isequal, "auditd" @SERVER_NAME:514<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">^^ This, however, will send those fields in their raw format and does not decode the values. Is it possible to natively interpret those fields before sending them to the remote server?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#0071CE">Joshua Ammons</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">
</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Advanced SIEM Engineer, Cybersecurity
<o:p></o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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