Hello,

I would like to configure auditd to only log events issued by some users acting as root after a 'sudo su -'

Unfortunately, after the user system makes a "sudo su -" the ids of user are the same as root.

Heres is the log of the command date issued by the user "system" uid 500

May 27 10:20:36 doma audispd: node=doma type=SYSCALL msg=audit(1274948436.000:57884): arch=c000003e syscall=59 success=yes exit=0 a0=6cf250 a1=6cf730 a2=6cf510 a3=0 items=2 ppid=26772 pid=27006 auid=4294967295 uid=1000 gid=19 euid=1000 suid=1000 fsuid=1000 egid=19 sgid=19 fsgid=19 tty=tty1 comm="date" exe="/bin/date" key=(null)

May 27 10:20:36 doma audispd: node=doma type=EXECVE msg=audit(1274948436.000:57884): a0="date"

May 27 10:20:36 doma audispd: node=doma type=PATH msg=audit(1274948436.000:57884): item=0 name="/bin/date" inode=48341 dev=fd:60 mode=0100755 ouid=0 ogid=0 rdev=00:00

Here's the same report of the date command after the user "system" changed its id using sudo su - :

May 27 10:22:13 doma audispd: node=doma type=SYSCALL msg=audit(1274948533.407:58095): arch=c000003e syscall=59 success=yes exit=0 a0=6d4b20 a1=6d4ff0 a2=6d4de0 a3=0 items=2 ppid=27175 pid=27181 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=tty1 comm="date" exe="/bin/date" key=(null)

May 27 10:22:13 doma audispd: node=doma type=EXECVE msg=audit(1274948533.407:58095): a0="date"

May 27 10:22:13 doma audispd: node=doma type=PATH msg=audit(1274948533.407:58095): item=0 name="/bin/date" inode=48341 dev=fd:60 mode=0100755 ouid=0 ogid=0 rdev=00:00

Any idea for me to idendify the primary login user for one specific command ?

At first I've though it was auid but its value is always set at 4294967295

I've also searched for logging commands specifics to a TTY but it seems auditd cannot filter on one specific TTY.

I've compiled and run audit on our own version of linux.

Regards

FP.