Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-05 Thread Mark Thomas
Christopher Schultz wrote: Mark, On 6/3/2009 11:42 AM, Mark Thomas wrote: CVE-2009-0580: Tomcat information disclosure vulnerability I know I'm likely to get a vague response, but could you provide some more info about this issue? I'm sorry you have that impression. As I hope you see

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-05 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mark, On 6/5/2009 7:03 AM, Mark Thomas wrote: Christopher Schultz wrote: Mark, On 6/3/2009 11:42 AM, Mark Thomas wrote: CVE-2009-0580: Tomcat information disclosure vulnerability I know I'm likely to get a vague response, but could you provide

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-05 Thread Mark Thomas
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

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-05 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mark, On 6/5/2009 12:14 PM, Mark Thomas wrote: 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

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-04 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mark, On 6/3/2009 11:42 AM, Mark Thomas wrote: CVE-2009-0580: Tomcat information disclosure vulnerability I know I'm likely to get a vague response, but could you provide some more info about this issue? Due to insufficient error checking in some

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-04 Thread Rémy Maucherat
On Thu, Jun 4, 2009 at 6:48 PM, Christopher Schultz ch...@christopherschultz.net wrote: I don't see any information disclosure vulnerability in the first place, and I don't see how your patch would have fixed it. ??! The behavior was different if the user is not found of if the password is

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-04 Thread Len Popp
It looks to me like the change fixes an NPE when a null or nonsense password is given. The NPE would allow an attacker to determine if a username is valid (without having to know the password). Not the most serious security breach, but login protocols aren't supposed to let you guess usernames. --

Re: [SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-04 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Rémy, On 6/4/2009 1:04 PM, Rémy Maucherat wrote: On Thu, Jun 4, 2009 at 6:48 PM, Christopher Schultz ch...@christopherschultz.net wrote: I don't see any information disclosure vulnerability in the first place, and I don't see how your patch would

[SECURITY] CVE-2009-0580 Apache Tomcat User enumeration vulnerability with FORM authentication

2009-06-03 Thread Mark Thomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 CVE-2009-0580: Tomcat information disclosure vulnerability Severity: Low Vendor: The Apache Software Foundation Versions Affected: Tomcat 4.1.0 to 4.1.39 Tomcat 5.5.0 to 5.5.27 Tomcat 6.0.0 to 6.0.18 The unsupported Tomcat 3.x, 4.0.x and 5.0.x