On Friday, July 13, 2012 10:14:59 AM Florian Crouzat wrote:
Le 12/07/2012 21:41, Thugzclub a écrit :
> Florian,
>
> Did you get and answer for this?
>
> Regards.
Not a single one.
Hmm...I thought I sent an answer. The problem from the kernel's perspective is
that it has no idea what user space is doing. It can't tell a password from
anything else being typed. There is a flag that can be set for the TTY to hide
characters. But the issue then becomes that now you have a loophole that a
crafty admin could use to hide what he's really doing.
If anyone has ideas on how to improve this, I think we should.
-Steve
> On 10 Jul 2012, at 08:29, Florian Crouzat
<gentoo(a)floriancrouzat.net>
wrote:
>> Hi,
>>
>> This is my first message to the list to please be indulgent, I might be
>> mixing concepts here between auditd, selinux and pam. Any guidance much
>> appreciated.
>>
>> For PCI-DSS, in order to be allowed to have a real root shell instead of
>> firing sudo all the time (and it's lack of glob/completion), I'm trying
>> to have any commands fired in any kind of root shell logged. (Of course
>> it doesn't protect against malicious root users but that's off-topic).
>>
>> So, I've been able to achieve that purpose by using :
>>
>> $ grep tty /etc/pam.d/{su*,system-auth}
>> /etc/pam.d/su:session required pam_tty_audit.so enable=root
>> /etc/pam.d/sudo:session required pam_tty_audit.so open_only enable=root
>> /etc/pam.d/sudo-i:session required pam_tty_audit.so open_only enable=root
>> /etc/pam.d/su-l:session required pam_tty_audit.so enable=root
>> /etc/pam.d/system-auth:session required pam_tty_audit.so disable=*
>> enable=root
>>
>> Every keystroke are logged in /var/log/audit/audit.log which is great. My
>> only issue is that I just realized that prompt passwords are also
>> logged, eg MySQL password or Spacewalk, etc. I can read them in plain
>> text when doing "aureport --tty -if /var/log/audit/audit.log and PCI-DSS
>> forbid any kind of storage of passwords, is there a workaround ? Eg:
>> don't log keystrokes when the prompt is "hidden" (inputting a
password)
>>
>> I'd like very much to be able to obtain real root shells for ease of work
>> (sudo -i) my only constraint beeing: log everything but don't store any
>> password.
>>
>> Thanks,
>>
>> --
>> Cheers,
>> Florian Crouzat
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