Subject: Re: Setuid deletions
To: Quentin Garnier <cube@cubidou.net>
From: Petar Bogdanovic <p.netbsd@2005.smokva.net>
List: netbsd-users
Date: 12/15/2005 13:29:52
Quentin Garnier wrote:
> On Thu, Dec 15, 2005 at 11:18:03AM +0100, Petar Bogdanovic wrote:
>> Hi!
>>
>> I just got this mail from a NetBSD 3-0-RC1 box:
>>
>> ********************************************************
>> Checking setuid files and devices:
>> Setuid/device find errors:
>> find: ipw: Authentication error
>>
>> Setuid deletions:
>> -r-xr-sr-x 1 root kmem 15252 Nov 21 14:23:06 2005 /sbin/ccdconfig
>> -r-sr-xr-x 1 root wheel 27334 Nov 21 14:23:14 2005 /sbin/ping
>> -r-sr-xr-x 1 root wheel 35927 Nov 21 14:23:28 2005 /sbin/ping6
>> -r-sr-xr-- 1 root operator 14463 Nov 21 14:23:17 2005 /sbin/shutdown
>> ********************************************************
>>
>>
>> The 'Authentication error' is irrelevant - it's just an old smbfs-share
>> which got disconnected because the smb-server went down.
>>
>> But the 'Setuid deletions' are impossible - I've never touched this
>> files since the very first day of this box.. :(
>>
>> Am I being hacked?
>
> I think the Authentication error is probably relevant. If find stopped
> after that, it didn't find the other files, and then the script found a
> diff between the stored list and and the current one.
>
> As you state the file are still there.
>
Thank you, this makes sense.
's' comes after 'm' and because the smb-share was mounted on /mnt/smb,
find couldn't reach /sbin.
I assume, the security-report of tomorrow will contain 'Setuid
additions' of ccdconfig, ping, ping6 and shutdown..
Thanks again.
Petar