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