suidperl broken
Erik P. Skaalerud
erik at pentadon.com
Wed May 12 13:10:45 PDT 2004
Anyone going to look into this soon?
Erik
> Suidperl doesnt seem to work on DragonFly.
>
> DragonFly:
>
> [erik at dragon:~/public_html]$ perl -v
> This is perl, v5.6.1 built for i386-freebsd
>
> [erik at dragon:~]$ ls -la /usr/local/bin/suidperl
> -rws--x--x 2 root wheel 706148 May 10 17:52 /usr/local/bin/suidperl
> [erik at dragon:~]$ ls -la /usr/local/bin/testsuid
> -rwsr-xr-x 1 root wheel 271 May 10 20:52 /usr/local/bin/testsuid
> [erik at dragon:~]$ cat /usr/local/bin/testsuid
> #!/usr/bin/suidperl
>
> use strict;
> undef %ENV;
> $ENV{'PATH'} = '/sbin:/bin';
>
> print "real UID: $< \n";
> print "effective UID: $> \n";
>
> $< = $>; # set realuid to effective uid (root)
>
> print "Set real to effective uid\n";
> print "real UID: $< \n";
> print "effective UID: $> \n";
>
> [erik at dragon:~]$ testsuid
> Can't reswap uid and euid.
>
>
>
> FreeBSD (4.9):
> [erik at staid:~]$ perl -v
> This is perl, v5.6.1 built for i386-freebsd [erik at staid:~]$ ls -la
> /usr/local/bin/suidperl-rws--x--x 2 root wheel 705508 Dec 18 11:05
> /usr/local/bin/suidperl[erik at staid:~]$ ls -la
> /usr/local/bin/testsuid-rwsr-xr-x 1 root wheel 271 May 10 21:04
> /usr/local/bin/testsuid[erik at staid:~]$ cat
> /usr/local/bin/testsuid#!/usr/bin/suidperluse strict;undef
> %ENV;$ENV{'PATH'} = '/sbin:/bin';print "real UID: $< \n";print "effective
> UID: $> \n";$< = $>; # set realuid to effective uid (root)print "Set real
> to effective uid\n";print "real UID: $< \n";print "effective UID: $>
> \n";[erik at staid:~]$ testsuidreal UID: 1000effective UID: 0Set real to
> effective uidreal UID: 0effective UID: 0
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