Ruby · Private Address Check · CVE-2017-0904
**Name of the Vulnerable Software and Affected Versions**
private address check ruby gem versions prior to 0.4.0
**Description**
The issue arises from the use of Ruby's `Resolv.getaddresses` method, which is OS-dependent and should not be relied upon for security measures. This method is used to blacklist private network addresses to prevent server-side request forgery, but its OS-dependent nature makes it unsuitable for such security purposes.
**Recommendations**
For private address check ruby gem versions prior to 0.4.0, update to version 0.4.0 or later to resolve the issue. As a temporary workaround, consider disabling the use of the `Resolv.getaddresses` method until a patch is available. Restrict access to private network addresses to minimize the risk of server-side request forgery.