"key=" on all related log lines

Andreas Hasenack andreas at canonical.com
Fri Dec 18 13:24:04 UTC 2020


Hi,

I use the -k "sometext" parameter in my audit rules, to help analyze
the logs. I noticed that it's only added to one of the log lines, not
the others, but the tools (ausearch, aureport) find the other related
entries nevertheless.

For example:

-w /etc/shadow -p wa -k shadow-file-changed

After a "# touch /etc/shadow" I get:
type=SYSCALL msg=audit(1608297571.005:160): arch=c000003e syscall=257
success=yes exit=3 a0=ffffff9c a1=7ffedcecb865 a2=941 a3=1b6 items=2
ppid=1623 pid=2382 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0
sgid=0 fsgid=0 tty=pts1 ses=1 comm="touch" exe="/bin/touch"
key="shadow-file-changed"
type=CWD msg=audit(1608297571.005:160): cwd="/root"
type=PATH msg=audit(1608297571.005:160): item=0 name="/etc/" inode=206
dev=fc:01 mode=040755 ouid=0 ogid=0 rdev=00:00 nametype=PARENT
cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0
type=PATH msg=audit(1608297571.005:160): item=1 name="/etc/shadow"
inode=64013 dev=fc:01 mode=0100640 ouid=0 ogid=42 rdev=00:00
nametype=NORMAL cap_fp=0000000000000000 cap_fi=0000000000000000
cap_fe=0 cap_fver=0
type=PROCTITLE msg=audit(1608297571.005:160):
proctitle=746F756368002F6574632F736861646F77

But only the first line has my key. Are the other entries correlated
via the id in "audit(id)"? Is there a way to have the key parameter
attached to all of them? I'd like to send to a remote log server only
certain events, and if I filter by key, I only get one of these log
lines.




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