The following code is the C source of the root owned SetUID$-$program "securePasswd" which has the file permission $4755.$

When the regular user "seed" $($UID$=1000)$ executes the program "securePasswd", what will be the UID and EUID of this process when "execve" system call being made?

Whether the program "securePasswd" is secure or not. Answer why or why not.

#include #include

void main$()$

$\{$

int fd; char $*$v$[2]$;

$/*/$etc$/$passwd is an important system file,

$*$ and it is owned by root with permission $06$

$*/$

$$ fd $=$ open$("/$etc$/$passwd$",$ O$\_$RDWR $|$ O$\_$APPEND$)$;

if $($fd $==-1)\{$

printf$("$Cannot open $/$etc$/$passwd

$")$ ;

exit$(0)$;

$$

setuid$($getuid$())$;

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v$[0]="/$bin$/$sh$"$; v$[1]=0$;

execve$($v$[0],$ v$,0)$;