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Well, we are in 2013 and It’s amazing how many JBOSS administration interfaces (jmx-console, web-console, invokers etc) are still exposed on the internet, however we are not going to talk about it. A couple of days ago I was performing a penetration testing and I found an environment with JBOSS AS 6. The JMX-Console wasn’t password protected but one console in special attracted my attention: the Admin Console. It seems that this console, I do not know the reason, is kind of forgotten by the security community as an attack vector. The default access credential for this console is admin/admin and it is also built upon a vulnerable version of Seam framework CVE 2010-1871 . This console provides a powerful JBOSS administration allowing a user to check the server’s configuration, to deploy and to delete applications, to read datasources etc. I checked out for the default credential but they were changed. There were other ways to hack this JBOSS but I was quite interes...

Have you ever used an SQL Injection flaw to perform a port scanner? It's known that common databases such as Oracle and SQLServer have special packages that can perform HTTP connections, build sockets, get host names and other information about networks. How about to use such resources to perform a port scanner exploiting a SQL injection flaw? It's useful to discover other assets in the network and to help us to map the environment. In our case, the DBMS was Oracle 10g. Usually we use the package URL_HTTP package to perform out of band SQL injection attack, however we are going to use it to perform a port scanner. Let's take a look at a practical example performed on a penetration testing: http://target/index_content. php?id=163447||utl_http. request('10.1.0.141:445')-- In this case, the value of the vulnerable parameter id is concatenated with the result of utl_http.request. We can manipulate the IP address as well the ports numbers. When the co...

Hello all. Let’s talk today about Man in the middle attack . No, this isn’t a post talking about what it is and how to perform a MITM attack. The proposal of this blog is to share experience with you, then most of the posts (at least until now) are about things that happened in real environments. Recently performing a penetration testing it was possible to get a web shell through a combination of vulnerabilities.   That’s good… a web shell right? But how about to going deep and explore more of the environment? Yes, if you thought about reverse web shell you are right, but, in this case, I couldn’t establish an outbound connection (this is a subject for another post). I did a lot of things in such environment and one of the things done was a MITM attack through a web shell. Let’s go to some important details. First of all, it was a Windows box. There are some tools you can perform a MITM attack on Windows box such as Cain & Abel , but remember, we had a web shell and...