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Anti-DoS attack?


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joaquimandrade
Veteran Member
Join Date: Dec 2008
Location: Portugal
Old 03-06-2010 , 08:55   Re: Anti-DoS attack?
Reply With Quote #11

I just tested and the plugin avoids the crash. It still prints:

Code:
SV_ReadClientMessage: unknown command char (68)
Dropped YdDfxnrs from server
Reason:  Bad command character in client command
But it didn't eject a client that was in there and kept running.

By the way, "YdDfxnrs" is a fake client created by the exploit to do dirty stuff
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Last edited by joaquimandrade; 03-06-2010 at 09:08.
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ehha
SourceMod Donor
Join Date: Apr 2006
Location: Sibiu
Old 03-06-2010 , 09:05   Re: Anti-DoS attack?
Reply With Quote #12

Quote:
Originally Posted by joaquimandrade View Post
I made a simple plugin to avoid sending the server down when that situation happens. I don't know if it is enough to keep it running. If somebody can teach me how to crash it or test this I will appreciate .

Needs this
I'll send you a PM with 3 methods of crashing.
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joaquimandrade
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Join Date: Dec 2008
Location: Portugal
Old 03-06-2010 , 09:08   Re: Anti-DoS attack?
Reply With Quote #13

Quote:
Originally Posted by ehha View Post
I'll send you a PM with 3 methods of crashing.
Ok
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joaquimandrade
Veteran Member
Join Date: Dec 2008
Location: Portugal
Old 03-06-2010 , 10:28   Re: Anti-DoS attack?
Reply With Quote #14

Here goes a mini script that blocks hlds_fuck and hlds_vcrash. It doesn't fix the bug, just blocks the exploits.

(The first plugin I posted should be used also)
Attached Files
File Type: zip stuff.zip (1.2 KB, 1759 views)
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KadiR
Unnecessary Member
Join Date: Aug 2008
Location: Zürich / Switzerland
Old 03-06-2010 , 12:08   Re: Anti-DoS attack?
Reply With Quote #15

No way todo it without using orpheu?
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joaquimandrade
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Join Date: Dec 2008
Location: Portugal
Old 03-06-2010 , 12:16   Re: Anti-DoS attack?
Reply With Quote #16

Quote:
Originally Posted by KadiR View Post
No way todo it without using orpheu?
Yes. Use dproto
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KadiR
Unnecessary Member
Join Date: Aug 2008
Location: Zürich / Switzerland
Old 03-06-2010 , 12:39   Re: Anti-DoS attack?
Reply With Quote #17

Quote:
Originally Posted by joaquimandrade View Post
Yes. Use dproto
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bluechester
AlliedModders Donor
Join Date: Nov 2008
Old 03-06-2010 , 14:21   Re: Anti-DoS attack?
Reply With Quote #18

Quote:
Originally Posted by joaquimandrade View Post
I saw some threads about that. So, is there an exploit against steam servers around? I did not understand if its only for non steam servers or not. Also if someone provides the bytes to patch to fix, one can make a plugin to patch the memory instead of installing software to patch.
I found out the error I was getting.

Code:
FATAL ERROR (shutting down): Host_Error: SV_ParseVoiceData: invalid incoming packet.
Your plugin fixes this exploit, however it does not compile. Can you fix it?
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joaquimandrade
Veteran Member
Join Date: Dec 2008
Location: Portugal
Old 03-06-2010 , 14:26   Re: Anti-DoS attack?
Reply With Quote #19

Quote:
Originally Posted by bluechester View Post
I found out the error I was getting.

Code:
FATAL ERROR (shutting down): Host_Error: SV_ParseVoiceData: invalid incoming packet.
Your plugin fixes this exploit, however it does not compile. Can you fix it?
Tell me the error
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alias_retaer
Member
Join Date: Jul 2009
Old 03-06-2010 , 14:58   Re: Anti-DoS attack?
Reply With Quote #20

anti cs dos & d****o is doing the job againts the exploits...
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