OWASP / OWASP/SecurityShepherd

Insecure Director Object Ref: Enumerate user ID's via Differing Responses

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Levels WebApp
Dominant language
Java
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Server returns 404 for non existing ID's, and 400 for ones that do exist

Contributor guide

Open the contributing guide

First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file, endpoint, or test is named. Start by locating the request that returns different status codes for existing and non-existing user IDs, then verify both cases; done means the response no longer reveals whether an ID exists.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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