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Show a warning if we are running setuid or setgid.

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david
2012-05-18 01:27:14 +00:00
parent 824834bbf3
commit 8d621f91aa
1 changed files with 12 additions and 0 deletions
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12
main.cc
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@@ -132,6 +132,15 @@ extern NmapOps o; /* option structure */
extern void set_program_name(const char *name);
/* Show a warning when running setuid or setgid, as this allows code execution
(for example NSE scripts) as the owner/group. */
static void check_setugid(void) {
if (getuid() != geteuid())
log_write(LOG_PLAIN, "WARNING: Running Nmap setuid, as you are doing, is a major security risk.\n");
if (getgid() != getegid())
log_write(LOG_PLAIN, "WARNING: Running Nmap setgid, as you are doing, is a major security risk.\n");
}
int main(int argc, char *argv[]) {
/* The "real" main is nmap_main(). This function hijacks control at the
beginning to do the following:
@@ -148,6 +157,9 @@ int main(int argc, char *argv[]) {
set_program_name(argv[0]);
/* Warn if setuid/setgid. */
check_setugid();
#ifdef __amigaos__
if(!OpenLibs()) {
error("Couldn't open TCP/IP Stack Library(s)!");