* Additional parameter in PROCTITLE.proctitle when executing rm @ 2021-03-18 19:31 Alan Evangelista 2021-03-18 20:01 ` Ondrej Mosnacek 2021-03-18 20:13 ` Richard Guy Briggs 0 siblings, 2 replies; 5+ messages in thread From: Alan Evangelista @ 2021-03-18 19:31 UTC (permalink / raw) To: Linux-Audit Mailing List [-- Attachment #1.1: Type: text/plain, Size: 1585 bytes --] 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? Regards, Alan [-- Attachment #1.2: Type: text/html, Size: 1896 bytes --] [-- Attachment #2: Type: text/plain, Size: 106 bytes --] -- Linux-audit mailing list Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Additional parameter in PROCTITLE.proctitle when executing rm 2021-03-18 19:31 Additional parameter in PROCTITLE.proctitle when executing rm Alan Evangelista @ 2021-03-18 20:01 ` Ondrej Mosnacek 2021-03-18 20:12 ` Alan Evangelista 2021-03-18 20:13 ` Richard Guy Briggs 1 sibling, 1 reply; 5+ messages in thread From: Ondrej Mosnacek @ 2021-03-18 20:01 UTC (permalink / raw) To: Alan Evangelista; +Cc: Linux-Audit Mailing List On Thu, Mar 18, 2021 at 8:32 PM Alan Evangelista <alan.vitor@gmail.com> 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? Perhaps a shell alias? What does `type rm` say? -- Ondrej Mosnacek Software Engineer, Linux Security - SELinux kernel Red Hat, Inc. -- Linux-audit mailing list Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Additional parameter in PROCTITLE.proctitle when executing rm 2021-03-18 20:01 ` Ondrej Mosnacek @ 2021-03-18 20:12 ` Alan Evangelista 0 siblings, 0 replies; 5+ messages in thread From: Alan Evangelista @ 2021-03-18 20:12 UTC (permalink / raw) To: Ondrej Mosnacek; +Cc: Linux-Audit Mailing List [-- Attachment #1.1: Type: text/plain, Size: 2059 bytes --] OM> Perhaps a shell alias? What does `type rm` say? # type rm rm is aliased to `rm -i' Thanks! On Thu, Mar 18, 2021 at 5:01 PM Ondrej Mosnacek <omosnace@redhat.com> wrote: > On Thu, Mar 18, 2021 at 8:32 PM Alan Evangelista <alan.vitor@gmail.com> > 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? > > Perhaps a shell alias? What does `type rm` say? > > -- > Ondrej Mosnacek > Software Engineer, Linux Security - SELinux kernel > Red Hat, Inc. > > [-- Attachment #1.2: Type: text/html, Size: 2627 bytes --] [-- Attachment #2: Type: text/plain, Size: 106 bytes --] -- Linux-audit mailing list Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Additional parameter in PROCTITLE.proctitle when executing rm 2021-03-18 19:31 Additional parameter in PROCTITLE.proctitle when executing rm Alan Evangelista 2021-03-18 20:01 ` Ondrej Mosnacek @ 2021-03-18 20:13 ` Richard Guy Briggs 2021-03-18 20:33 ` Todd Heberlein 1 sibling, 1 reply; 5+ messages in thread From: Richard Guy Briggs @ 2021-03-18 20:13 UTC (permalink / raw) To: Alan Evangelista; +Cc: Linux-Audit Mailing List 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 <rgb@redhat.com> 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 Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Additional parameter in PROCTITLE.proctitle when executing rm 2021-03-18 20:13 ` Richard Guy Briggs @ 2021-03-18 20:33 ` Todd Heberlein 0 siblings, 0 replies; 5+ messages in thread From: Todd Heberlein @ 2021-03-18 20:33 UTC (permalink / raw) To: Richard Guy Briggs; +Cc: Linux-Audit Mailing List 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 <rgb@redhat.com> 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 <rgb@redhat.com> > 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 > Linux-audit@redhat.com > https://listman.redhat.com/mailman/listinfo/linux-audit > -- Linux-audit mailing list Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-03-18 20:39 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-03-18 19:31 Additional parameter in PROCTITLE.proctitle when executing rm Alan Evangelista 2021-03-18 20:01 ` Ondrej Mosnacek 2021-03-18 20:12 ` Alan Evangelista 2021-03-18 20:13 ` Richard Guy Briggs 2021-03-18 20:33 ` Todd Heberlein
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).