QID 580556

QID 580556: String Field Minimum Limit Mismatches Schema

In this scenario minimum values for string fields are tested for fields when defined. If the minimum values are not defined this test is skipped. Values less than the minimum defined in the swagger file for string fields are sent to the server for the endpoint being tested. The expectation is that the server will reject the request as invalid, if the length is lower than it's minimum limit specified.

Based on testing done using requests with values lower than the minimum defined in the swagger file it is determined that the minimum values defined for string fields are not enforced as expected. The response code received for the request with lower values for string fields is not expected and does not match the response documented in the swagger file schema.

Enforcing the minimum value set on the field will help provide clarity to the API users and avoid abuse of the API by hackers. Enforcing limits help in mitigating resource exhaustion attacks. Mimatch with swagger schema results in lack of clarity to the API users.

CVSS V3 rated as Medium - 5.4 severity.

CVSS V2 rated as Low - 0 severity.

Solution

Please update the API endpoint response to match the swagger schema definition or update the schema to match the server response.

Vendor References

CVEs related to QID 580556

Software Advisories

Advisory ID	Software	Component	Link

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].