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GHSA-hcw2-2r9c-gc6p

CasaOS Username Enumeration - Bypass of CVE-2024-24766

Source: GitHub Advisory Database (reviewed) Moderate CVE-2024-28232

Packages

EcosystemPackageAffectedFixed in
Go github.com/IceWhaleTech/CasaOS-UserService >= 0.4.7, < 0.4.8 0.4.8

Details

As written in the advisory (Markdown source, shown as plain text).

### Summary The Casa OS Login page has disclosed the username enumeration vulnerability in the login page which was patched in `CasaOS v0.4.7`. ### Details It is observed that the attacker can enumerate the CasaOS username using the application response. If the username is incorrect the application gives the error "**User does not exist**" with success code "**10006**", If the password is incorrect the application gives the error "**User does not exist or password is invalid**" with success code "**10013**". ### PoC 1. If the Username is invalid application gives "User does not exist" with success code "**10006**". ![1](https://github.com/IceWhaleTech/CasaOS-UserService/assets/63414468/a6eb4321-b2f3-4fba-aa8e-e1d0fbf58187) 2. If the Password is invalid application gives "**User does not exist or password is invalid**" with success code "**10013**". ![2](https://github.com/IceWhaleTech/CasaOS-UserService/assets/63414468/126eff54-eeb0-4ee6-bc46-695376b5e5cd) ### Impact Using this error attacker can enumerate the username of CasaOS. ### The logic behind the issue The logic behind the issue If the username is incorrect, then throw an error "**User does not exist**" with success code "**10006**", else throw an error "**User does not exist or password is invalid**" with success code "**10013**". This condition can be vice versa like: If the password is incorrect, then throw an error "**User does not exist or password is invalid**" with success code "**10013**", else throw an error "**User does not exist**" with success code "**10006**". ### Mitigation Since this is the condition we have to implement a single error which can be "**Username/Password is Incorrect!!!**" with single success code.

References

External links from the advisory. They lead to third-party sites.