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51ea9c7c4f
Fix several exploitable bugs in the CUserCmd class. Some of these have been used to exploit/cheat in-game. Fixes contain: - Camera position clamping (the only patch that hasn't been tested yet!) - Weapon activity exploit, allowing player to infinitely throw ordnances, and perform other 'cheats'. - Akimbo exploit + server crasher, allowing client to set multiple inventory weapons as active. The active weapon index bounds were also not checked, a properly crafter CUserCmd message would therefore be able to crash the server. Note that this does not fix all issues related to the UserCmd class; further reversing and testing revealed there is more to be fixed, these fixes will get implemented with a future commit.
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
#ifndef CLIENT_INPUT_H
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#define CLIENT_INPUT_H
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#include "game/client/iinput.h"
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class CInput : public IInput
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{
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public:
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static void SetCustomWeaponActivity(CInput* pInput, int weaponActivity);
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private:
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};
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inline CMemory p_CInput__SetCustomWeaponActivity;
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inline auto v_CInput__SetCustomWeaponActivity = p_CInput__SetCustomWeaponActivity.RCast<void (*)(CInput* pInput, int weaponActivity)>();
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inline IInput* g_pInput_VFTable = nullptr;
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inline CInput* g_pInput = nullptr;
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///////////////////////////////////////////////////////////////////////////////
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class VInput : public IDetour
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{
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virtual void GetAdr(void) const
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{
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LogConAdr("CInput::`vftable'", reinterpret_cast<uintptr_t>(g_pInput_VFTable));
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LogFunAdr("CInput::SetCustomWeaponActivity", p_CInput__SetCustomWeaponActivity.GetPtr());
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LogVarAdr("g_Input", reinterpret_cast<uintptr_t>(g_pInput));
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}
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virtual void GetFun(void) const
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{
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p_CInput__SetCustomWeaponActivity = g_GameDll.
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FindPatternSIMD("89 91 ?? ?? ?? ?? C3 CC CC CC CC CC CC CC CC CC F3 0F 11 89 ?? ?? ?? ?? C3 CC CC CC CC CC CC CC F3 0F 10 81 ?? ?? ?? ??");
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v_CInput__SetCustomWeaponActivity = p_CInput__SetCustomWeaponActivity.RCast<void (*)(CInput*, int)>();
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}
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virtual void GetVar(void) const
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{
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g_pInput = g_GameDll.FindPatternSIMD("E8 ?? ?? ?? ?? 48 8B 5D 57").FollowNearCallSelf().
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FindPatternSelf("48 8B 05").ResolveRelativeAddressSelf(0x3, 0x7).RCast<CInput*>();
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}
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virtual void GetCon(void) const
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{
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g_pInput_VFTable = g_GameDll.GetVirtualMethodTable(".?AVCInput@@").RCast<IInput*>();
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}
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virtual void Attach(void) const;
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virtual void Detach(void) const;
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};
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///////////////////////////////////////////////////////////////////////////////
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#endif // CLIENT_INPUT_H
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