Wrapper that can leverage SUID/SGID bits to execute other files that cannot directly benefit from those bits

suid-wrapper.c

// https://engineering.purdue.edu/ECN/Support/KB/Docs/HowToSUIDSGIDscripts
// Can target executable binaries and scripts

// Compile: gcc -static ./suid-wrapper.c -o ./suid-wrapper
// Prep: chmod u+s ./suid-wrapper

int main(int argc, char ** argv)
{
        /* Reset uid/gid */
        setregid(getegid(), getegid());
        setreuid(geteuid(), geteuid());

        /* Attempt to execute script */
        execv("./path/to/executable/file", argv);

        /* Reach here if execv failed */
        perror("execv");
        return 1;
}