UNIX for Dummies Questions & Answers

Hi Guys,

I am new to this forum so I am sorry if i posted this thread in the wrong place. I am currently trying to get BSM to work on solaris 10 by Logging few things for me. I need your help to complete this task please.

this is the config of the audit files:

audit_conto

# Copyright (c) 1988 by Sun Microsystems, Inc.
#
# ident "@(#)audit_control.txt 1.4 00/07/17 SMI"
#
dir:/var/audit
flags:lo,ad,cc
minfree:20
naflags:lo,ad,ex

audit class

#
# mask:name:description
#
0x00000000:no:invalid class
0x00000001:fr:file read
0x00000002:fw:file write
0x00000004:fa:file attribute access
0x00000008:fm:file attribute modify
0x00000010:fc:file create
0x00000020:fd:file delete
0x00000040:cl:file close
0x00000100:nt:network
0x00000200:ip:ipc
0x00000400:na:non-attribute
0x00001000:lo:login or logout
0x00004000:ap:application
0x00010000:ss:change system state
0x00020000:as:system-wide administration
0x00040000:ua:user administration
0x00070000:am:administrative (meta-class)
0x00080000:aa:audit utilization
0x000f0000:adld administrative (meta-class)
0x00100000srocess start/stop
0x00200000mrocess modify
0x00300000crocess (meta-class)
0x20000000:io:ioctl
0x40000000:ex:exec
0x80000000tther
0xffffffff:all:all classes (meta-class)
0x08000000:cc:CIS custom class


I only need to audit what users execute. Is there an easy way to do it.

Thanks

You want to add the ex class to the flags: in audit_control so it reads:
flags:lo,ad,cc,ex

Or as you have defined your own audit class (cc) you could add it to AUE_EXECVE in audit_event so it reads:
22:AUE_EXECVE:execve(2):ps,ex,cc

See this post for more information.

Thanks I will try that today. The only thing now is formatting the output via praudit/auditrace. I will have to work on creating a script that will do that for me.

Hi,

I have managed to get rootsh to work. What I want it to do is to start logging users session as soon as they loging to the box. rootsh uses sudo root user and I don't have that setup here. what do you guys think?

I thought about using the .profile and adding a line like

/usr/local/bin/rootsh --user=$username --logdir=$logs

any idea?

thanks

IMO you get better logging with Solaris auditing than rootsh. If I know you audit my actions with rootsh I will just write a C program that does all my covert actions and you won't be able to see it - the only thing rootsh catches is that I downloaded a file which I then executed.

With Solaris auditing you can not hide your actions as the logging happens in the kernel (for system calls), so even if you run an unknown program I will be able to see what it was up to.

The only downside to Solaris auditing is that the output format is harder to read, but there will soon be a nice gui to view the audit trail in, where you easily can chose to view the commands executed by a user.

right, here is what i did then.

# Copyright (c) 1988 by Sun Microsystems, Inc.
#
# ident "@(#)audit_control.txt 1.4 00/07/17 SMI"
#
dir:/var/audit
flags:lo,ad,cc,ex
minfree:20
naflags:lo


# User Level Class Masks
#
# Developers: If you change this file you must also edit audit.h.
#
# "Meta-classes" can be created; these are supersets composed of multiple base
# classes, and thus will have more than 1 bit in its mask. See "ad", "all",
# "am", and "pc" below for examples.
#
# The "no" (invalid) class below is commonly (but not exclusively) used in
# audit_event for obsolete events.
#
#
# File Format:
#
# mask:name:description
#
0x00000000:no:invalid class
0x00000001:fr:file read
0x00000002:fw:file write
0x00000004:fa:file attribute access
0x00000008:fm:file attribute modify
0x00000010:fc:file create
0x00000020:fd:file delete
0x00000040:cl:file close
0x00000100:nt:network
0x00000200:ip:ipc
0x00000400:na:non-attribute
0x00001000:lo:login or logout
0x00004000:ap:application
0x00010000:ss:change system state
0x00020000:as:system-wide administration
0x00040000:ua:user administration
0x00070000:am:administrative (meta-class)
0x00080000:aa:audit utilization
0x000f0000:adld administrative (meta-class)
0x00100000srocess start/stop
0x00200000mrocess modify
0x00300000crocess (meta-class)
0x20000000:io:ioctl
0x40000000:ex:exec
0x80000000tther
0xffffffff:all:all classes (meta-class)
0x08000000:cc:CIS custom class



23:AUE_EXECVE:execve(2)s,ex,cc


Just like how you recommanded. ( I think) !!

Now, I cann't see things like (cd / or ls -ltr) command or i may need to look deep into the log files. In addation, the size of the logs is in Gigs, it looks like i am going to need to acquire more disk space soon!!

snap shot!!

subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,168,2,memcntl(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.298 +00:00
argument,1,0xff360000,base
argument,2,0x73d4,len
argument,3,0x4,cmd
argument,4,0x3,arg
argument,5,0x0,attr
argument,6,0x0,mask
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,114,2,munmap(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.298 +00:00
argument,1,0xff344000,addr
argument,2,0x10000,len
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,168,2,memcntl(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.298 +00:00
argument,1,0xff340000,base
argument,2,0x12b8,len
argument,3,0x4,cmd
argument,4,0x3,arg
argument,5,0x0,attr
argument,6,0x0,mask
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,114,2,munmap(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.299 +00:00
argument,1,0xff2d4000,addr
argument,2,0x10000,len
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,168,2,memcntl(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.299 +00:00
argument,1,0xff200000,base
argument,2,0x204d8,len
argument,3,0x4,cmd
argument,4,0x3,arg
argument,5,0x0,attr
argument,6,0x0,mask
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,114,2,munmap(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.300 +00:00
argument,1,0xff31c000,addr
argument,2,0x10000,len
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,168,2,memcntl(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.300 +00:00
argument,1,0xff310000,base
argument,2,0x3588,len
argument,3,0x4,cmd
argument,4,0x3,arg
argument,5,0x0,attr
argument,6,0x0,mask
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,114,2,munmap(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.301 +00:00
argument,1,0xff192000,addr
argument,2,0x10000,len
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,168,2,memcntl(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.301 +00:00
argument,1,0xff100000,base
argument,2,0x15b74,len
argument,3,0x4,cmd
argument,4,0x3,arg
argument,5,0x0,attr
argument,6,0x0,mask
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
header,114,2,munmap(2),,beatrix.cyberslotz.co.uk,2007-03-06 13:56:42.301 +00:00
argument,1,0xff1e2000,addr
argument,2,0x10000,len
subject,hassan,root,root,root,root,10312,554721698,14555 65559 172.16.1.202
return,success,0
file,2007-03-06 13:56:42.310 +00:00,



the idea behind this auditing thing is, to have all commands logged now, i didn't think the output is going to be like that. Now, if i get a request from management to produce the command set for one the users is going to be a nightmare to have something that will explaine to them what that users did in a nice layout.

any idea when the gui will be downloadable.
thanks

Since you added cc which contains AUE_EXECVE you don't need ex.

What other events have you tagged with cc?
It is strange that you see events from the ot and cl classes, as you don't have those in audit_control. What does audit_user look like?

Could you run auditconfig -getpinfo pid where pid is the shell where you want to see the exec(s)'s?

To pick out the exec(2)'s you should run:
auditreduce -m AUE_EXECVE /path/to/audit-trail | praudit

If you want to work with just one user, you can use the -u aid option to auditreduce in conjunction with the example above. That way you'll just get the exec(2)'s belonging to that user.

The beta will be out in about one to two months. It is more or less ready now, we there is a lot of polishing to do...