© 2024 Prancer Enterprise
OWASP top 10 API Security vulnerabilities – Security Misconfiguration
April 12, 2023
OWASP API Security Security Misconfiguration


Security Misconfiguration refers to the risk of APIs being improperly configured, which can lead to vulnerabilities or weaknesses in their security. This can occur when APIs are not properly secured during development or deployment, or when they are not properly maintained and kept up to date with security patches and updates.


Some common risks associated with Security Misconfiguration include:

  • Unauthorized access to sensitive data or functionality
  • Compromise of user accounts
  • Reputational damage for the organization due to data breaches or service disruptions
Attack Scenarios

Attack scenarios for cloud applications may include:

  • An attacker exploits a known vulnerability in an API due to a lack of proper patches or updates
  • An attacker gains access to an API through default or easily guessable credentials
  • An attacker discovers and exploits a misconfigured or poorly secured API endpoint
Vulnerable Sample Code

A vulnerable sample of code in Go lang might look like this:

func getData(w http.ResponseWriter, r *http.Request) {
  // Retrieve the data from the database
  data, err := database.GetData()
  if err != nil {
    http.Error(w, "Error retrieving data", http.StatusInternalServerError)

  // Return the data to the user

In this example, the API call retrieves data from a database and returns it to the caller. However, there is no authentication or authorization in place to ensure that only authorized users can access the data. An attacker could exploit this vulnerability by simply making an API request to the endpoint and accessing the data without proper credentials.

Sample Attack

A sample attack payload using the curl command might look like this:

curl http://api.example.com/getdata

In this example, the attacker is using curl to send a request to the API without any authentication or authorization. If the API is vulnerable to Security Misconfiguration, the attacker may be able to access the data without proper credentials.

MITRE ATT&CK framework reference

Security Misconfiguration can be mapped to the Tactic: Initial Access and the Techniques: Obtain Credentials, Exploit Public-Facing Application in the MITRE ATT&CK framework. These techniques involve exploiting vulnerabilities or weaknesses in systems or applications to gain unauthorized access.


To mitigate the risk of Security Misconfiguration, organizations should ensure that they properly secure their APIs during development and deployment, and regularly maintain and update them with security patches and updates. This may include implementing proper authentication and authorization controls, as well as regularly reviewing and testing the security of their API implementations. Organizations should also ensure that they have proper logging and monitoring in place to detect and respond to potential security misconfigurations or vulnerabilities.

Download API Security whitepaper

Our in-depth whitepaper provides valuable insights into how Prancer Security’s cutting-edge solution mitigates critical risks such as unauthorized access and data breaches, while adhering to the highest security standards.

Don’t leave your API security to chance – download our comprehensive whitepaper now and discover how Prancer Security can safeguard your organization from potential threats!