Re: [hlds_linux] New DoS attack: listdeaths

ics Mon, 18 Jun 2012 12:52:38 -0700

Same way as the good old multiple minisentries bug has re-surfaced twicesince first fix. Too many spoons in the same soup.


-ics


18.6.2012 22:12, [email protected] kirjoitti:

I know how to block it, though most server owners probably don't.

My question is why is this even possible, when it was supposedly
removed in 2007.

http://wiki.teamfortress.com/wiki/October_2,_2007_Patch

On Mon, Jun 18, 2012 at 4:30 AM, Saul Rennison<[email protected]>  wrote:

If you remove the FCVAR_GAMEDLL flag from this command it will prevent
clients from being able to execute it (via SourceMod or some other plugin)


Kind regards,
*Saul Rennison*


On 18 June 2012 09:19, [email protected]<[email protected]>  wrote:

I am wondering why a client can repeatedly spam a command like
listdeaths and cause the server to lockup with thousands of lines that
don't even show up in the client.

It looks like this:

63266.50 : TF_CLASS_SNIPER at (4690,4135,568) caused 174 damage to
TF_CLASS_MEDIC with TF_WEAPON_SNIPERRIFLE at (3463,3454,448), CRIT!,
KILL
63266.77 : TF_CLASS_PYRO at (3496,2963,576) caused 5 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3670,2875,576)
63266.77 : TF_CLASS_PYRO at (3496,2963,576) caused 2 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3670,2875,576)
63266.80 : TF_CLASS_PYRO at (3496,2963,576) caused 5 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3670,2875,576)
63266.85 : TF_CLASS_PYRO at (3510,2952,576) caused 6 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3658,2887,576)
63266.86 : TF_CLASS_PYRO at (3517,2947,576) caused 5 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3658,2887,576)
63266.91 : TF_CLASS_PYRO at (3517,2947,576) caused 7 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3651,2894,576)
63266.94 : TF_CLASS_PYRO at (3525,2942,576) caused 7 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3644,2901,576)
63266.98 : TF_CLASS_PYRO at (3545,2932,576) caused 6 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3636,2909,576)
63267.03 : TF_CLASS_PYRO at (3563,2931,576) caused 6 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3629,2916,576)
63267.07 : TF_CLASS_PYRO at (3572,2932,576) caused 6 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3621,2923,576)
63267.12 : TF_CLASS_PYRO at (3573,2934,576) caused 7 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3621,2931,576)
63267.16 : TF_CLASS_PYRO at (3573,2941,576) caused 6 damage to
TF_CLASS_HEAVYWEAPONS with TF_WEAPON_FLAMETHROWER at (3621,2940,576),
KILL

---------------------------------

listed 92 deaths
listed 1615 damages

Even a few of these will cause the server to freeze before getting
kicked by SMAC for command spamming.

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Re: [hlds_linux] New DoS attack: listdeaths

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