Re[2]: Question regarding shell user creation at login time

You wrote 29 mar 2004, 8:05:55 +0500:

> Hi,

> I traced sshd using ktrace and it says:
> ......
>   10198 new      CALL  setuid(0)
>   10198 new      RET   setuid -1 errno 1 Operation not permitted
>   10198 new      CALL  execve(0x80485d0,0xbfbfed8c,0xbfbfed94)
>   10198 new      NAMI  "/home/new/new.pl"
>   10198 new      RET   execve -1 errno 13 Permission denied
>   10198 new      CALL  exit(0xffffffff)
> .....

> My C program is:

> #include <unistd.h>

> main(ac, av)
>          char **av;
> {
>          setuid(0);
>          execv("/home/new/new.pl",av);
> }

> Directory:

> public# ls -la ~new
> total 46
> drwxr-xr-x  2 root  wheel    512 Mar 29 09:10 .
> drwxr-xr-x  8 root  wheel    512 Mar 25 15:28 ..
> -r--r-----  1 root  new      767 Mar 24 17:43 .cshrc
> -r--r-----  1 root  new      248 Mar 26 12:32 .login
> -r--r-----  1 root  new      158 Mar 24 17:43 .login_conf
> -r--r-----  1 root  new      373 Mar 24 17:43 .mail_aliases
> -r--r-----  1 root  new      331 Mar 24 17:43 .mailrc
> -r--r-----  1 root  new      797 Mar 24 17:43 .profile
> -r--r-----  1 root  new      276 Mar 24 17:43 .rhosts
> -r--r-----  1 root  new      975 Mar 24 17:43 .shrc
> -rwsr-x---  1 root  new     4651 Mar 26 08:47 new
> ----------  1 root  wheel     94 Mar 26 08:47 new.c
> -r-x------  1 root  wheel  15430 Mar 25 15:16 new.pl
> -rw-r--r--  1 root  wheel     52 Mar 25 16:52 new.sh


> Can somebody tell me the reason why it is failed?

> Thanks in advance,

> Ganbold

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You are not root! You are 'new' in 'new'-group. Try this:
# chmod g+x ~new/new.pl