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[CS:S] spec_goto crash fix


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Author
blaacky
Senior Member
Join Date: Oct 2012
Plugin ID:
5480
Plugin Version:
1.0
Plugin Category:
Server Management
Plugin Game:
Counter-Strike: Source
Plugin Dependencies:
    Servers with this Plugin:
    38 
    Plugin Description:
    Fix spec_goto crash exploit
    Old 01-06-2017 , 20:17   [CS:S] spec_goto crash fix
    Reply With Quote #1

    Using the spec_goto command, players can crash servers by inputting impossible values. It's fixed by this plugin
    Attached Files
    File Type: sp Get Plugin or Get Source (specgotofix.sp - 1533 views - 740 Bytes)
    __________________

    Last edited by blaacky; 06-14-2017 at 18:48. Reason: Changed description of the version cvar :D my copy paste skills are great
    blaacky is offline
    xines
    Veteran Member
    Join Date: Aug 2013
    Location: Denmark
    Old 01-07-2017 , 10:12   Re: [CS:S] spec_goto crash fix
    Reply With Quote #2

    Holy, nice find! Gonna block the whole cmd myself to be sure for now!
    __________________
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    catdevnullwhoami
    New Member
    Join Date: Jan 2017
    Old 01-23-2017 , 23:37   Re: [CS:S] spec_goto crash fix
    Reply With Quote #3

    Hello Guys! Are you ok?

    What kind commands for example?

    How can i test this malicious commands on my server?

    Thanks
    catdevnullwhoami is offline
    shavit
    AlliedModders Donor
    Join Date: Dec 2011
    Location: Israel
    Old 01-28-2017 , 15:56   Re: [CS:S] spec_goto crash fix
    Reply With Quote #4

    Quote:
    Originally Posted by catdevnullwhoami View Post
    Hello Guys! Are you ok?

    What kind commands for example?

    How can i test this malicious commands on my server?

    Thanks
    wild guess:
    Code:
    spec_goto 10000000000 10000000000 10000000000 0 0
    or
    Code:
    spec_goto 10000000000 10000000000 10000000000 10000000000 10000000000
    (untested, no idea how this command works to begin with)

    *hopefully won't be used to crash servers*
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    blaquicat
    Member
    Join Date: Aug 2009
    Old 03-25-2019 , 08:51   Re: [CS:S] spec_goto crash fix
    Reply With Quote #5

    It does works on l4d2, just tested, spec_goto could crash my server, not anymore, thanks!!
    blaquicat is offline
    albertj12b
    New Member
    Join Date: Mar 2019
    Old 03-27-2019 , 18:29   Re: [CS:S] spec_goto crash fix
    Reply With Quote #6

    FYI 100% work for Lewd4Dead servers in LFD2 but might be obsolete for the game:

    Quote:
    March 27, 2019 - L4D Team

    An update has been released for Left 4 Dead 2. - Fixed a spectate command exploit that caused servers to hang. - Fixed lobby chat messages not appearing on Linux.
    http://www.l4d.com/blog/

    Apparent exact minimum command needed to have trigger buffer overflow:

    Code:
    spec_goto 0 0 274877923328.1 0 0
    Someone wrote about it here but never expanded on the malform parameters bit which may still keep alternative spec_goto fixes relevent:

    spec_goto: How to instantly crash any L4D2 server (and how Admins can patch it)
    https://steamcommunity.com/sharedfil.../?id=652991759

    Keeping plugin installed regardless, ta.
    albertj12b is offline
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