On Mon, 2009-03-02 at 15:17 +0100, Nikola Ciprich wrote: > Hello, > I'd like to ask about one thing regarding audit I don't understand: > We are running auditd configured to log some syscalls (ie exec) and > everything works fine, but quite often we're getting > some strange records: > type=SYSCALL msg=audit(1236001721.608:55239): arch=c000003e syscall=59 > success=yes exit=0 a0=7f1407a74653 a1=7fff1088d710 a2=12cf580 a3=7f1408884770 > items=2 ppid=20278 pid=23246 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 > sgid=0 fsgid=0 tty=pts4 ses=25 comm="sh" exe="/bin/bash" subj=kernel > key=(null) > type=EXECVE msg=audit(1236001721.608:55239): argc=3 a0="sh" a1="-c" > a2=66696C65202D4C202F7661722F6C6F672F61756469742F61756469742E6C6F6720323E2F6465762F6E756C6C > type=CWD msg=audit(1236001721.608:55239): cwd="/var/log/audit" > type=PATH msg=audit(1236001721.608:55239): item=0 name="/bin/sh" inode=97403 > dev=08:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=unlabeled > type=PATH msg=audit(1236001721.608:55239): item=1 name=(null) inode=63681 > dev=08:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=unlabeled > type=SYSCALL msg=audit(1236001721.609:55240): arch=c000003e syscall=59 > success=yes exit=0 a0=11ee410 a1=11ee9d0 a2=11ed260 a3=0 items=2 ppid=23246 > pid=23247 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 > tty=pts4 ses=25 comm="file" exe="/usr/bin/file" subj=kernel key=(null) > > I'm not sure what > "66696C65202D4C202F7661722F6C6F672F61756469742F61756469742E6C6F6720323E2F6465762F6E756C6C" > argument might be, is it somehow encoded string? It seems to remain > unchanged across multiple events... > Could somebody shed some light on it for me? > Thanks a lot in advance!
It's a hex representation of the actual bits sent to audit. In this case it is a string which contains the space character. Since we don't really trust use strings when they contain non-letters we encode it like this. This translates to "file -L /var/log/audit/audit.log 2>/dev/null" http://www.dolcevie.com/js/converter.html does a nice easy conversion... -- Linux-audit mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-audit
