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[temp-scw-app[bot]]

Based on output from pull request checks:

Micro-Learning Topic: Code Injection (Detected by phrase)

What is this? (2min video)

Code injection happens when an application insecurely accepts input that is subsequently used in a dynamic code evaluation call. If insufficient validation or sanitisation is performed on the input, specially crafted inputs may be able to alter the syntax of the evaluated code and thus alter execution. In a worst case scenario, an attacker could run arbitrary code in the server context and thus perform almost any action on the application server.

Try to identify instances where external input is subsequently used in a dynamic code evaluation call and identify the code context in which each input is used. Carefully review the data flow of these inputs and determine if appropriate filtering or encoding is being performed. You may need to look up language reference material to identify the language-specific special characters that any validation or sanitisation logic will need to account for.

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[temp-scw-app[bot]]

Based on output from pull request checks:

Micro-Learning Topic: Reflected Cross-Site Scripting (Detected by phrase)

What is this? (2min video)

Reflected cross-site scripting vulnerabilities occur when unescaped input is displayed in the resulting page displayed to the user. When HTML or script is included in the input, it will be processed by a user's browser as HTML or script and can alter the appearance of the page or execute malicious scripts in their user context.

Find the instances in the application where external input is displayed to users. Try to trace each value all the way from input to display and work out if any escaping or encoding is applied to prevent these values from being treated as raw HTML or script once it is written to the page. Pay special attention to the context of where the values are being written into a page as different contexts may have different encoding requirements. For example, a value written into a HTML tag attribute will require different encoding to a value written into a HTML tag value.

Try this challenge in Secure Code Warrior

[temp-scw-app[bot]]

Based on output from pull request checks:

Micro-Learning Topic: Reflected Cross-Site Scripting (Detected by phrase)

What is this? (2min video)

Reflected cross-site scripting vulnerabilities occur when unescaped input is displayed in the resulting page displayed to the user. When HTML or script is included in the input, it will be processed by a user's browser as HTML or script and can alter the appearance of the page or execute malicious scripts in their user context.

Find the instances in the application where external input is displayed to users. Try to trace each value all the way from input to display and work out if any escaping or encoding is applied to prevent these values from being treated as raw HTML or script once it is written to the page. Pay special attention to the context of where the values are being written into a page as different contexts may have different encoding requirements. For example, a value written into a HTML tag attribute will require different encoding to a value written into a HTML tag value.

Try this challenge in Secure Code Warrior