20 Jun 2012

Secure Coding Quiz

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Secure Coding Quiz

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Question 1
Consider the scenario where a developer uses a cookie to count failed login attempts to implement account lockout against a brute force attack. How can this measure be bypassed?
A
Account Lockout will cause a denial of service thus helping the attacker
B
User can manipulate the cookie
C
Attacker will attempt a session fixation attack
Question 2
The use of a Canary value is a safeguard against what type of attack?
A
Buffer Overflow by stack smashing
B
Denial of Service
C
Brute Force
D
Heap Overflow
Question 3
Best practice for secure coding against SQL Injection attacks?
A
Lowering application privileges
B
Use of Stored Procedures
C
Use of Parameterized Queries.
D
Database hardening
Question 4
Which of the following should be avoided as a security measure?
A
Whitelisting
B
Blacklisting
C
Encryption
D
Parameterized Queries
Question 5
For a web mail application that handles form input and displays them in the browser, what threat are you at risk of?
A
Remote File Inclusion
B
XSS
C
CSRF
D
SQL Injection
Question 6
Failure of handling of concurrent requests by a process dependent on a sequence or timing of events leads to:
A
SQL Injection
B
Brute Force Attack
C
Race Condition
D
Session Fixation
Question 7
What is the practice of encoding data to a common character set before validation formally known as?
A
Canonicalization
B
Sanitization
C
Input Validation
D
Encryption
Question 8
For a centralized input validation component, what is the area at which you redirect input data for validation?
A
At the database
B
Trust Boundary
C
At the communication medium
D
Client Side Form
Question 9
The best way to implement input validation is by:
A
Server Side Blacklisting
B
Server Side Whitelisting
C
Encrypted communications
D
Client Side Input Validation
Question 10
How do you implement efficient error handling?
A
Redirect user to homepage
B
Generic error messages without any information on the type of error or stack traces
C
Give verbose error messages to help obtain necessary technical feedback.
Question 11
Why do you require to change the Session ID after Login?
A
To prevent Session Fixation
B
To Prevent Cross Site Request Forgery
C
To prevent XSS
D
To Prevent SQL Injection
Question 12
Before embedding data into an HTTP response header, validating input for CR/LFs would help mitigate against:
A
Remote File Inclusion
B
Brute Force Attack
C
Cross Site Request Forgery
D
HTTP Response Splitting
Question 13
To harden your system against a Path Traversal attack, the following is considered a good practice
A
Use a chrooted environment on the directory containing your application files
B
Using Parameterized Queries
C
Generate a new session identifier to force change from HTTP to HTTPS and deactivate the old one.
D
Transfer data in a POST request
Question 14
For output data as input to another module of the application or to the underlying OS, what would be appropriate?
A
Transfer data using HTTP POST method
B
Implement application at least privilege
C
Validate all Input
D
Per-request session token
Question 15
For limited input type, what security measure is most viable as input validation?
A
Blacklist: Create a list of known bad values
B
Output Encoding
C
Prepared Statements
D
Create a list of legitimate values that a user is allowed to specify
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