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From "John H. Embretsen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3272) BUILTIN authentication: Passwords stored in a database are not hashed if also defined as system property
Date Wed, 12 Dec 2007 16:23:43 GMT
BUILTIN authentication: Passwords stored in a database are not hashed if also defined as system
property
--------------------------------------------------------------------------------------------------------

                 Key: DERBY-3272
                 URL: https://issues.apache.org/jira/browse/DERBY-3272
             Project: Derby
          Issue Type: Bug
          Components: Security
    Affects Versions: 10.3.2.1
         Environment: BUILTIN authentication enabled
            Reporter: John H. Embretsen


Normally, passwords stored as database properties when using Derby's BUILTIN authentication
provider are hashed using the well-known SHA-1 algorithm (although this is most likely not
mentioned in the documentation). This makes it very hard for attackers to reconstruct the
actual password even if they are able to obtain the hashed password value from the database.

However, if credentials for the same user are also defined programmatically, for example on
the command line, the password is not hashed before it is being stored in the database. This
could lead to surprises if, for example, a user is using system properties during development,
and decides to switch to database properties only before deployment, as recommended in the
documentation [1].

Workaround: Do not specify the same user credentials programmatically when setting credentials
as database properties. For example, define a temporary user by using system properties when
storing real user credentials in the database.

[1]: http://db.apache.org/derby/docs/dev/devguide/tdevcsecure82556.html

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