Summary
CasaOS Username Enumeration
The Casa OS Login page has disclosed the username enumeration vulnerability in the login page.
Details
It is observed that the attacker can enumerate the CasaOS username using the application response. If the username is incorrect application gives the error "User does not exist", If the password is incorrect application gives the error "Invalid password".
PoC
Capture the login request in a tool like Burp Suit and use the intruder tab for trying multiple usernames.
Keep checking the response of each request if the response says Invalid password then the username is right.
The logic behind the issue
If the username is incorrect, then throw an error "User does not exist" else throw an error "Invalid password".
This condition can be vice versa like:
If the password is incorrect, then throw an error "Invalid password" else throw an error "User does not exist".
Mitigation
Since this is the condition we have to implement a single error which can be "Username/Password is Incorrect!!!"
Impact
Using this error attacker can enumerate the username of CasaOS.
CVE-2024-24766 has a CVSS score of 6.2 (Medium). The vector is requires local access, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.4.7); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2024-24766? CVE-2024-24766 is a medium-severity security vulnerability in github.com/IceWhaleTech/CasaOS-UserService (go), affecting versions >= 0.4.4.3, < 0.4.7. It is fixed in 0.4.7.
- How severe is CVE-2024-24766? CVE-2024-24766 has a CVSS score of 6.2 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of github.com/IceWhaleTech/CasaOS-UserService are affected by CVE-2024-24766? github.com/IceWhaleTech/CasaOS-UserService (go) versions >= 0.4.4.3, < 0.4.7 is affected.
- Is there a fix for CVE-2024-24766? Yes. CVE-2024-24766 is fixed in 0.4.7. Upgrade to this version or later.
- Is CVE-2024-24766 exploitable, and should I be worried? Whether CVE-2024-24766 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-24766 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-24766? Upgrade
github.com/IceWhaleTech/CasaOS-UserServiceto 0.4.7 or later.