🧞API Security Cheat Sheet PART - 10

Sophisticated Authentication Techniques and Their Security Implications

Strings with Backspace Characters
```
{"login": "admin\b",
 "password": "password\b"}
```
Description: Incorporates backspace characters, highlighting the need for handling control characters that can alter string content.
Test with Emoji in Strings
```
{"login": "admin😀",
 "password": "password😀"}
```
Description: Features emojis, emphasizing the importance of supporting a wide range of Unicode characters.
JSON with Comments (Not Officially Supported)
```
{/*"login": "admin",
 "password": "password"*/}
```
Description: Demonstrates the use of comments, which are not officially supported in JSON, pointing to the need for strict JSON syntax adherence.
JSON with Base64 Encoded Values
```
{"login": "YWRtaW4=",
 "password": "cGFzc3dvcmQ="}
```
Description: Utilizes Base64 encoding, stressing the importance of handling encoded data formats.
Including Null Byte Character (May Cause Truncation)
```
{"login": "admin\0",
 "password": "password\0"}
```
Description: Contains null byte characters, which can cause truncation in some systems, underscoring the need for careful handling of such characters.
JSON with Credentials in Scientific Notation
```
{"login": 1e100,
 "password": 1e100}
```
Description: Uses scientific notation, highlighting the necessity to handle large numerical values correctly.
Strings with Octal Values
```
{"login": "\141\144\155\151\156",
 "password": "\160\141\163\163\167\157\162\144"}
```
Description: Features octal values, indicating the challenges in interpreting different numeric representations.

This collection of sophisticated API authentication scenarios provides a deep dive into the complexities of securing APIs. Each scenario sheds light on unique challenges, from accommodating diverse character sets and data formats to ensuring precise parsing and validation. These considerations are key to maintaining a secure and robust API infrastructure.

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Last updated 2 years ago