Note: No need to the run the code plz just give me answer of the question related to given scenrio answer should be 5 to 6 lines.thanks

Question: Will the file /etc/uwe be modified? Please explain your observation as to why or why not the file is able to be modified.

#include stdio.h>

#include stdlib.h> #include fcntl.h>

#include unistd.h>

void main()

{ int fd;

/* Assume that /etc/uwe is an important system file,

* and it is owned by root with permission 0644.

* Before running this program, you should create

* the file /etc/uwe first. */ fd = open("/etc/uwe", O_RDWR | O_APPEND); if (fd == -1) { printf("Cannot open /etc/uwe "); exit(0);

}

/* Simulate the tasks conducted by the program */ sleep(1);

/* After the task, the root privileges are no longer

* needed, its time to relinquish the root privileges

* permanently. */

setuid(getuid()); /* getuid() returns the real uid */

if (fork()) { /* In the parent process */ close (fd); exit(0);

} else { /* in the child process */

/* Now, assume that the child process is compromised,

* malicious attackers have injected the following

* statements into this process */ write (fd, "Malicious Data ", 15); close (fd);

}

}

To follow the Principle of Least Privilege, Set-UID programs often permanently relinquish their root privileges if such privileges are not needed anymore. Moreover, sometimes, the program needs to hand over its control to the user, in this case, root privileges must be revoked. The setuid() system call can be used to revoke the privileges. According to the manual, setuid() sets the effective user ID of the calling process. If the effective UID of the caller is root, the real UID and saved set-user-ID are also set". Therefore, if a Set-UID program with effective UID O calls setuid (n), the process will become a normal process, with all its UIDs being set to n. When revoking the privilege, one of the common mistakes is capability leaking. The process may have gained some privileged capabilities when it was still privileged; when the privilege is downgraded, if the program does not clean up those capabilities, they may still be accessible by the non-privileged process. In other words, although the effective user ID of the process becomes nonprivileged, the process is still privileged because it possesses privileged capabilities. Compile the program in Code Listing 9, change its owner to root, and make it a Set-UID program. Run the program as the uwe user and describe what you have observed. Before running this program, you should create the file /etc/uwe file first. $ sudo touch /etc/uwe $ sudo chmod 644 /etc/uwe Question: Will the file /etc/uwe be modified? Please explain your observation as to why or why not the file is able to be modified include catdio.h> include tanclude include void main() Lint idi Assume that lete/uwe la an important system file, and it is owned by root with permission 0644. Before running this program, you should create the file /etc/uwe first. Id open(/etc/uwe" O_RDWR 1 O_APPEND): 16 --1) print(Cannot open /etc/uwen"); exit(0)