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| author | Jarkko Hietaniemi <jhi@iki.fi> | 2000-08-07 15:05:29 +0000 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2000-08-07 15:05:29 +0000 |
| commit | 9feff13c269d28cf1435d1f62481a5d18a330707 (patch) | |
| tree | 8be8fa07c368cc2b7b9eadc1ce576316204e449e | |
| parent | fdbb8cbde311423021cac075eca818cc6b8ae2e4 (diff) | |
| download | perl-9feff13c269d28cf1435d1f62481a5d18a330707.tar.gz | |
Plug the security hole described in the Aug 05 2000 bugtraq message
"sperl 5.00503 (and newer ;) exploit" by Michal Zalewski.
The security hole exists only in suidperls, which isn't
installed or even built by default.
p4raw-id: //depot/perl@6536
| -rw-r--r-- | perl.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -2851,6 +2851,7 @@ S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) if (tmpstatbuf.st_dev != PL_statbuf.st_dev || tmpstatbuf.st_ino != PL_statbuf.st_ino) { (void)PerlIO_close(PL_rsfp); +#ifdef MAIL_CAN_BE_USED_SAFELY /* No, it can't. As of Aug 05 200, there's bugtraq exploit. */ if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ PerlIO_printf(PL_rsfp, "User %"Uid_t_f" tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ @@ -2861,6 +2862,7 @@ S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) PL_statbuf.st_uid, PL_statbuf.st_gid); (void)PerlProc_pclose(PL_rsfp); } +#endif Perl_croak(aTHX_ "Permission denied\n"); } if ( |