🧞‍♂️API Security Cheat Sheet PART - 5

Varied Authentication Techniques and Their Security Implications

Tab Characters in Strings
```
{"login": "ad\tmin",
 "password": "pa\tssword"}
```
Description: Incorporates tab characters, demonstrating the need to handle or sanitize special character sequences.
Test with HTML Content in Strings
```
{"login": "<b>admin",
 "password": "password"}
```
Description: Uses HTML tags, underscoring the importance of protecting against Cross-Site Scripting (XSS) and similar attacks.
JSON Injection in Strings
```
{"login": "{\"injection\":\"value\"}",
 "password": "password"}
```
Description: Shows the possibility of JSON injection, highlighting the need for careful parsing and validation of JSON strings.
Test with XML Content in Strings
```
{"login": "admin",
 "password": "<xml>password</xml>"}
```
Description: Utilizes XML tags in strings, pointing to the necessity of handling different data formats securely.
Combination of Number, Strings, and Special Characters
```
{"login": "ad123min!@",
 "password": "pa55w0rd!@"}
```
Description: Features a mix of alphanumeric and special characters, emphasizing the need for robust character handling.
Floating Numbers as Strings
```
{"login": "123.456",
 "password": "789.123"}
```
Description: Uses floating-point numbers as strings, stressing the importance of versatile data type interpretation.
Value as a Combination of Languages
```
{"login": "adminव्यवसायापक",
 "password": "passwordपासवर्ड"}
```
Description: Combines English and Hindi characters, showcasing the challenge of multilingual data handling.
Non-ASCII Characters in Strings
```
{"login": "∆admin∆",
 "password": "∆password∆"}
```
Description: Involves non-ASCII characters, illustrating the need for international character set support.
Single Character Keys and Values
```
{"l": "a",
 "p": "p"}
```
Description: Utilizes single-character keys and values, demonstrating the necessity to handle minimalistic JSON structures.
Use of Environment Variables
```
{"login": "${USER}",
 "password": "${PASS}"}
```
Description: Features environment variables as values, indicating the need for careful evaluation of variable substitution in credentials.

This extensive list of API authentication scenarios aims to provide developers and security professionals with insights into a multitude of potential security challenges. Each scenario underscores the need for comprehensive validation, sanitization, and handling of a wide range of data types, formats, and structures. This vigilance is crucial in creating and maintaining secure API environments.

PreviousAPI Security Cheat Sheet PART - 4 NextAPI Security Cheat Sheet PART - 6

Last updated 2 years ago