CAS-002 Free Dumps Study Materials
Question 19: The security administrator finds unauthorized tables and records, which were not present
before, on a Linux database server. The database server communicates only with one web server,
which connects to the database server via an account with SELECT only privileges.
Web server logs show the following:
90.76.165.40 - - [08/Mar/2014:10:54:04] "GET calendar.php?create%20table%20hidden HTTP/1.1
" 200 5724
9 0.76.165.40 - - [08/Mar/2014:10:54:05] "GET ../../../root/.bash_history HTTP/1.1" 200
5 724
90.76.165.40 - - [08/Mar/2014:10:54:04] "GET index.php?user=<script>Create</script> HTTP/1.1" 20
0 5724 The security administrator also inspects the following file system locations on the database
server using the command 'ls -al /root' drwxrwxrwx 11 root root 4096 Sep 28 22:45 .
drwxr-xr-x 25 root root 4096 Mar 8 09:30 ..
-rws------ 25 root root 4096 Mar 8 09:30 .bash_history
-rw------- 25 root root 4096 Mar 8 09:30 .bash_history
-rw------- 25 root root 4096 Mar 8 09:30 .profile
-rw------- 25 root root 4096 Mar 8 09:30 .ssh
Which of the following attacks was used to compromise the database server and what can the
security administrator implement to detect such attacks in the future? (Select TWO).
A. Privilege escalation
B. Brute force attack
C. SQL injection
D. Cross-site scripting
E. Using input validation, ensure the following characters are sanitized: <>
F. Update crontab with: find / \( -perm -4000 \) -type f -print0 | xargs -0 ls -l | email.sh
G. Implement the following PHP directive: $clean_user_input = addslashes($user_input)
H. Set an account lockout policy
Correct Answer: A,F