Side note: I found on some previous versions of CentOS 7 that if you audit a system call that often comes before the exec() system call (e.g., auditing close() which is called a number of times after a fork but before an exec), the PROCTITLE field will be for the parent process and not the new process.
I am guessing that PROCTITLE is set at the first audit record (e.g., close() ) and isn’t reset later such as when the exec() is called. (I haven’t tested this on recent versions of CentOS or RHEL) Todd > On Mar 18, 2021, at 1:13 PM, Richard Guy Briggs <[email protected]> wrote: > > On 2021-03-18 16:31, Alan Evangelista wrote: >> I'm trying to audit commands run in bash, including the commands arguments. >> The proctitle parameter in the PROCTITLE record seems to be the most >> reliable source to get that, but it does not contain exactly the "rm" >> command I have typed on bash. Example: >> >> 1) rm /data/test2,txt -f >> >> type=SYSCALL msg=audit(1616095201.302:40381): arch=c000003e syscall=263 >> success=yes exit=0 a0=ffffffffffffff9c a1=1b1f0c0 a2=0 a3=7fff3677a720 >> items=3 ppid=15954 pid=3398 auid=201327714 uid=0 gid=0 euid=0 suid=0 fsuid=0 >> egid=0 sgid=0 fsgid=0 tty=pts0 ses=2663 comm="rm" exe="/usr/bin/rm" >> key="filesystem_op" >> type=CWD msg=audit(1616095201.302:40381): cwd="/home/aevangelista" >> type=PATH msg=audit(1616095201.302:40381): item=0 name="/data/test2.txt" >> inode=38030531 dev=08:11 mode=0100644 ouid=0 ogid=0 rdev=00:00 >> objtype=NORMAL cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 >> cap_fver=0 >> type=PATH msg=audit(1616095201.302:40381): item=1 name="/data/" inode=64 >> dev=08:11 mode=040755 ouid=0 ogid=0 rdev=00:00 objtype=PARENT >> cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 cap_fver=0 >> type=PATH msg=audit(1616095201.302:40381): item=2 name="/data/test2.txt" >> inode=38030531 dev=08:11 mode=0100644 ouid=0 ogid=0 rdev=00:00 >> objtype=DELETE cap_fp=0000000000000000 cap_fi=0000000000000000 cap_fe=0 >> cap_fver=0 >> type=PROCTITLE msg=audit(1616095201.302:40381): >> proctitle=726D002D69002F646174612F74657374322E747874002D66 >> >> The proctitle value 726D002D69002F646174612F74657374322E747874002D66 is >> equal to "rm-i /data/test2.txt -f" in ASCII. Where did this -i come from? >> Is it expected? > > At first, this looks like something left over from the "-i" parameter > supplied to ausearch to interpret the values in the audit records to > give you that plaintext. > > But more likely, it is an alias in ~/.bashrc, ~/.bash-profile, > ~/.profile, /etc/bashrc, /etc/bash.bashrc, /etc/profile, > /etc/profile.d/* that is nannying you to be sure you meant to delete > what you are asking to delete. > > This can be overridden with -f. rm(1) options preceed the filespec. > >> Alan > > - RGB > > -- > Richard Guy Briggs <[email protected]> > Sr. S/W Engineer, Kernel Security, Base Operating Systems > Remote, Ottawa, Red Hat Canada > IRC: rgb, SunRaycer > Voice: +1.647.777.2635, Internal: (81) 32635 > > -- > Linux-audit mailing list > [email protected] > https://listman.redhat.com/mailman/listinfo/linux-audit > -- Linux-audit mailing list [email protected] https://listman.redhat.com/mailman/listinfo/linux-audit
