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[TF2] Fix cl_interp exploit


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Author
WhiteFalcon
Member
Join Date: Nov 2019
Plugin ID:
7208
Plugin Version:
Plugin Category:
All
Plugin Game:
Team Fortress 2
Plugin Dependencies:
    Servers with this Plugin:
     
    Plugin Description:
    Fixes an exploit related to cl_interp.
    Unapprover:
    Reason for Unapproving:
    Fixed by Valve
    Old 07-18-2020 , 18:27   [TF2] Fix cl_interp exploit
    Reply With Quote #1

    Fixes an exploit related to cl_interp, in which the ConVar values changes, but CBasePlayer::m_fLerpTime doesn't.

    I don't think i should demonstrate the exploit, or how it can be achieved, you do that by yourself.
    Attached Files
    File Type: sp Get Plugin or Get Source (tf_interp_fix.sp - 415 views - 841 Bytes)

    Last edited by WhiteFalcon; 07-19-2020 at 05:38. Reason: m_fLerpTime already exists in datamap
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    enderandrew
    Senior Member
    Join Date: Jun 2020
    Old 07-19-2020 , 02:42   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #2

    How do I know what exploit fix plugins I need for TF2 and which ones have been patched by Valve?
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    WhiteFalcon
    Member
    Join Date: Nov 2019
    Old 07-19-2020 , 05:41   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #3

    Quote:
    Originally Posted by enderandrew View Post
    How do I know what exploit fix plugins I need for TF2 and which ones have been patched by Valve?
    Pretty sure you can find it easity in youtube. And no, valve did not patch it yet.
    Also edited the original post, it was quite too late i noticed m_fLerpTime already existed as Prop_Data.

    Last edited by WhiteFalcon; 08-05-2020 at 18:42.
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    enderandrew
    Senior Member
    Join Date: Jun 2020
    Old 07-19-2020 , 14:05   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #4

    Quote:
    Originally Posted by WhiteFalcon View Post
    Pretty sure you can find it easity in youtube. And no, valve did not patch it yet.
    Also edited the original post, it was quite too late i noticed m_fLerpTime already existed as Prop_Data.
    I figured since you just put this out that it is a current exploit.

    I meant other than this one, which other exploit fixes should I be running? I think there are 20-30 of these plugins released as TF2 exploit fixes and I don't know if I need to run them all.
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    WhiteFalcon
    Member
    Join Date: Nov 2019
    Old 07-19-2020 , 17:03   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #5

    Quote:
    Originally Posted by enderandrew View Post
    I figured since you just put this out that it is a current exploit.

    I meant other than this one, which other exploit fixes should I be running? I think there are 20-30 of these plugins released as TF2 exploit fixes and I don't know if I need to run them all.
    It's all up to you, most if not all of exploit published here are deprecated by their author, since valve already patched them.
    as for now, i'm only aware of cl_interp exploit and spray thing.

    Last edited by WhiteFalcon; 07-22-2020 at 07:23. Reason: spray
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    Judge_Duck
    Junior Member
    Join Date: Jul 2020
    Old 07-19-2020 , 18:03   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #6

    Thanks for the plugin.

    I've been playing a while but new to running servers this year. Everything I google about this exploit is from 2018-2019, are there other ways to mitigate this issue that people have been using in the meantime?
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    sapphonie
    Junior Member
    Join Date: Aug 2020
    Location: ohio
    Old 06-16-2021 , 21:50   Re: [TF2] Fix cl_interp exploit
    Reply With Quote #7

    Please remove this. Changing m_fLerpTime does not effect the client's actual interpolation value, I am pretty sure you would need to dig into gamedata for that. Plus, valve fixed this exploit months ago when they properly linked the cl_interp convar and other such convars related to it to properly update when changed. This plugin ALSO does 0 bounds checking, causing clients to get banned by anticheat plugins like StAC (mine) and LilAC for having "nolerp" when in reality, they did nothing wrong. And again, interp isn't even solely based off of the cl_interp convar, nor has it been for a long time.
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    Last edited by sapphonie; 06-16-2021 at 21:50.
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