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From Mark Thomas <>
Subject Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication
Date Fri, 05 Jun 2009 16:14:52 GMT
Christopher Schultz wrote:
>> For the JDBC and DataSource Realms, earlier versions (5.5.0 to 5.5.5 and
>> 4.1.0 to 4.1.31 with the DataSource Realm introduced in 4.1.17) are
>> vulnerable.
> I'm afraid I still don't understand the vulnerability in 5.5's
> DataSourceRealm (the one I actually look at in detail): the NPE occurs
> (in the unpatched code) regardless of the presence of a valid user(name).

You need to go back to what the code looked like between 5.5.0 and
5.5.5. It was very different back then.


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