Merge pull request #553 from ineedbots/main
Fix negativeAck exploit (crash DOS)
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commit
3d440eabc5
@ -12,6 +12,19 @@ namespace patches
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{
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namespace
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{
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utils::hook::detour sv_executeclientmessages_hook;
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void sv_executeclientmessages_stub(game::client_s* client, game::msg_t* msg)
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{
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if (client->reliableAcknowledge < 0)
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{
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client->reliableAcknowledge = client->reliableSequence;
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return;
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}
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sv_executeclientmessages_hook.invoke<void>(client, msg);
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}
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void script_errors_stub(const char* file, int line, unsigned int code, const char* fmt, ...)
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{
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char buffer[0x1000];
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@ -39,6 +52,9 @@ namespace patches
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utils::hook::set<uint8_t>(game::select(0x14224DBB4, 0x1405312A8), 3);
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utils::hook::set<uint8_t>(game::select(0x14224DF8C, 0x1405316DC), 3);
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// make sure client's reliableAck are not negative
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sv_executeclientmessages_hook.create(game::select(0x14224A460, 0x14052F840), sv_executeclientmessages_stub);
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scheduler::once([]
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{
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game::register_dvar_string("password", "", game::DVAR_USERINFO, "password");
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@ -1583,15 +1583,23 @@ namespace game
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int client_state;
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char __pad0[0x28];
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netadr_t address;
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char __pad1[0x5588];
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char gap_3C[20468];
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int reliableSequence;
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int reliableAcknowledge;
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char gap_5038[4];
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int messageAcknowledge;
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char gap_5040[1416];
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uint64_t xuid;
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char __pad2[0xB5D84];
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int guid;
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char __pad3[0x8];
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bool bIsTestClient;
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char __pad4[0x29DAC];
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char gap_BB361[3];
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int serverId;
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char gap_BB368[171432];
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};
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#ifdef __cplusplus
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static_assert(sizeof(client_s) == 0xE5110);
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