Get The SecOps Group CAP Exam Practice Questions - Real and Updated

Answer : A

The Same-Origin Policy (SOP) is a fundamental security mechanism in web browsers that restricts how a document or script loaded from one origin can interact with resources from another origin. An origin is defined by the combination of protocol, host, and port. Two pages have the same origin if their protocol (e.g., http://), host (e.g., www.example.com), and port (default is 80 for HTTP) match exactly. The given URL is http://www.example.com/dir/page2.html, which uses HTTP, host www.example.com, and the default port 80.

Option 1 ('http://www.example.com/dir/other.html'): Matches the protocol (http), host (www.example.com), and port (default 80), so it is in the same origin.

Option 2 ('http://www.example.com:81/dir/other.html'): Differs in port (81 vs. default 80), so it is a different origin.

Option 3 ('http://www.example.com/dir/other.html'): Identical to Option 1, matching protocol, host, and port, so it is in the same origin. However, since it's a duplicate of Option 1 in the list, it doesn't add a new page.

Option 4 ('http://en.example.com/dir/other.html'): Differs in host (en.example.com vs. www.example.com), so it is a different origin.

Since the question asks which pages are in the same origin, and only Option 1 (and its duplicate Option 3) matches, the correct answer is A ('1 Only'), considering unique pages. The CAP syllabus covers SOP under 'Client-Side Security' and 'Cross-Origin Resource Sharing (CORS).'

Answer : C

Clickjacking is an attack where a malicious site overlays a transparent iframe containing a legitimate site, tricking users into interacting with it unintentionally (e.g., clicking a button). The Content-Security-Policy (CSP) HTTP response header is used to mitigate various client-side attacks, including clickjacking, through specific directives. The frame-ancestors directive is the correct choice for preventing clickjacking. This directive specifies which origins are allowed to embed the webpage in an iframe, <frame>, or <object>. For example, setting frame-ancestors 'self' restricts framing to the same origin, effectively blocking external sites from embedding the page. This is a standard defense mechanism recommended by OWASP and other security frameworks.

Option A ('script-src') controls the sources from which scripts can be loaded, addressing XSS (Cross-Site Scripting) vulnerabilities but not clickjacking. Option B ('object-src') restricts the sources of plugins or embedded objects (e.g., Flash), which is unrelated to iframe-based clickjacking. Option D ('base-uri') defines the base URL for relative URLs in the document, offering no protection against framing attacks. The use of CSP with the frame-ancestors directive is a critical topic in the CAP syllabus under 'Security Headers' and 'OWASP Top 10' (UI Redressing).

Answer : A

The payload {{7*7}} is a common test string used to detect Server-Side Template Injection (SSTI) vulnerabilities. SSTI occurs when user input is improperly rendered within a server-side template engine (e.g., Jinja2, Freemarker, or Handlebars), allowing the execution of arbitrary template expressions. If the server evaluates {{7*7}} and returns 49 (the result of 7 multiplied by 7), it indicates that the server is processing the input as a template expression, confirming an SSTI vulnerability. This can potentially lead to remote code execution if the template engine supports advanced features.

Option A ('Server Side Template Injection (SSTI)'): Correct, as {{7*7}} is a standard payload to test for SSTI by checking if the server evaluates the expression.

Option B ('Client-Side Template Injection (CSTI)'): Incorrect, as CSTI involves client-side rendering (e.g., JavaScript templates like Mustache), and {{7*7}} would not be evaluated on the client unless explicitly designed to do so, which is not implied here.

Option C ('Both 1 and 2'): Incorrect, as the payload specifically targets server-side processing.

Option D ('None of the above'): Incorrect, as SSTI is applicable.

The correct answer is A, aligning with the CAP syllabus under 'Server-Side Template Injection' and 'Input Validation.'

Answer : C

A docker-compose.yml file is a YAML-formatted configuration file used with Docker Compose, a tool for defining and running multi-container Docker applications. Its primary significance lies in orchestrating the deployment of Docker containers by specifying services (e.g., web server, database), networks (e.g., internal communication), and volumes (e.g., persistent storage). An exposed docker-compose.yml file poses a security risk because it may reveal sensitive configuration details, such as service names, ports, environment variables (e.g., database credentials), and network settings, which attackers could exploit to target the application.

Option A ('The docker-compose.yml file is a YAML file that contains the application source code'): Incorrect, as this file defines configuration and orchestration, not source code.

Option B ('The docker-compose.yml file is a YAML file that contains the server logs and user session information...'): Incorrect, as logs and session data are stored elsewhere (e.g., in container logs or databases), not in docker-compose.yml.

Option C ('The docker-compose.yml file is a YAML file that is used to define the services, networks, and volumes...'): Correct, as it accurately describes the file's purpose and content, including configuration and dependencies, which are critical for Docker applications.

Option D ('The docker-compose.yml file is a YAML file that contains the configuration of load balancers and firewalls'): Incorrect, as it focuses only on load balancers and firewalls, which are specific components and not the primary focus of the file.

The correct answer is C, aligning with the CAP syllabus under 'Container Security' and 'Configuration Management.'

Answer : D

Null Byte Injection is a vulnerability where a null byte character (\0 or ASCII 0) is injected into user-supplied input to manipulate application behavior, often bypassing filters or terminating strings prematurely in languages like C or C++ that rely on null-terminated strings. In web applications, this is typically encoded in URLs using percent-encoding (e.g., %xx, where xx is the hexadecimal value). The ASCII value of a null byte is 0, which is represented as %00 in URL encoding.

Option A ('%01'): Represents the ASCII character with value 1 (Start of Heading), not a null byte.

Option B ('%10'): Represents the ASCII character with value 16 (Data Link Escape), not a null byte.

Option C ('%25'): Represents the % character itself (ASCII 37), not a null byte.

Option D ('%00'): Represents the null byte (ASCII 0), which is the correct URL-encoded form used in Null Byte Injection attacks.

The correct answer is D, aligning with the CAP syllabus under 'Injection Attacks' and 'Input Validation Bypasses.'