On Di, 31.08.2004, 10:11, Rene sagte:
>
>
> date: 31.08.2004
> author: l0om - l0om [at] excluded dot org - www.excluded.org
> discovered in: SuSE Linux Openexchange Server 4
> problem: cleartext rootpw in swap caused by fergotten "mlock" or wiping
> out memory
>
>
> hi,
>
> i have noticed my root password flying around on my swap in cleartext.
> an attacker who has successfully rooted a box can get the cleartext
> password from the swap device.
>
> i dont know if this is caused by some SuSE mistake at the web login- maybe
> its a fault in openldap.
> i dont know exactly where this is caused.
>
Well, if the server is "rooted", as you like to put it, there's little
point in gaining the root-password anyway, isn't it ?
You can do pretty much everything, except login as the administrator-user
via the web-interface. Being able to scratch the root-pw out of swap is
just a bonus, if you ask me.
It would be bad, if a non-priviledged user had access to the swap-partition.
On the two SLOXs I have access to, the swap-partition is only
group-readable by the "disk" group.
Or is there some other way of reading the swap-partition ?
If not, this is not a big concern to me (and we run and support some of
these for various customers).
If, OTOH, you had talked about the empty password for the SLOX'
postgres-database.... that would be something completely different (TM).
>
>
> date: 31.08.2004
> author: l0om - l0om [at] excluded dot org - www.excluded.org
> discovered in: SuSE Linux Openexchange Server 4
> problem: cleartext rootpw in swap caused by fergotten "mlock" or wiping
> out memory
>
>
> hi,
>
> i have noticed my root password flying around on my swap in cleartext.
> an attacker who has successfully rooted a box can get the cleartext
> password from the swap device.
>
> i dont know if this is caused by some SuSE mistake at the web login- maybe
> its a fault in openldap.
> i dont know exactly where this is caused.
>
Well, if the server is "rooted", as you like to put it, there's little
point in gaining the root-password anyway, isn't it ?
You can do pretty much everything, except login as the administrator-user
via the web-interface. Being able to scratch the root-pw out of swap is
just a bonus, if you ask me.
It would be bad, if a non-priviledged user had access to the swap-partition.
On the two SLOXs I have access to, the swap-partition is only
group-readable by the "disk" group.
Or is there some other way of reading the swap-partition ?
If not, this is not a big concern to me (and we run and support some of
these for various customers).
If, OTOH, you had talked about the empty password for the SLOX'
postgres-database.... that would be something completely different (TM).
cheers,
Rainer
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