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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9934) Vulnerability in LdapAuthenticationProviderImpl enables HiveServer2 client to degrade the authentication mechanism to "none", allowing authentication without password
Date Thu, 19 Mar 2015 21:38:38 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14370174#comment-14370174
] 

Xuefu Zhang commented on HIVE-9934:
-----------------------------------

Apache has special guidelines regarding security vulnerabilities. Here is the link:

http://www.apache.org/security/committers

We are all new to this, so what we have done so far may not comply to this. However, we should
try to do so from now on.

For doc, please also refer to the document.

AS to the vulnerability, discussion is still ongoing in the community. Thus, we will act based
on the conclusions.

> Vulnerability in LdapAuthenticationProviderImpl enables HiveServer2 client to degrade
the authentication mechanism to "none", allowing authentication without password
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9934
>                 URL: https://issues.apache.org/jira/browse/HIVE-9934
>             Project: Hive
>          Issue Type: Bug
>          Components: Security
>    Affects Versions: 1.1.0
>            Reporter: Chao
>            Assignee: Chao
>             Fix For: 1.2.0
>
>         Attachments: HIVE-9934.1.patch, HIVE-9934.2.patch, HIVE-9934.3.patch, HIVE-9934.3.patch
>
>
> Vulnerability in LdapAuthenticationProviderImpl enables HiveServer2 client to degrade
the authentication mechanism to "none", allowing authentication without password.
> See: http://docs.oracle.com/javase/jndi/tutorial/ldap/security/simple.html
> “If you supply an empty string, an empty byte/char array, or null to the Context.SECURITY_CREDENTIALS
environment property, then the authentication mechanism will be "none". This is because the
LDAP requires the password to be nonempty for simple authentication. The protocol automatically
converts the authentication to "none" if a password is not supplied.”
>  
> Since the LdapAuthenticationProviderImpl.Authenticate method is relying on a NamingException
being thrown during creation of initial context, it does not fail when the context result
is an “unauthenticated” positive response from the LDAP server. The end result is, one
can authenticate with HiveServer2 using the LdapAuthenticationProviderImpl with only a user
name and an empty password.



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