ErrorMint is a tool created to audit the disclose of information through errors in web applications, as explained by OWASP at their Testing Guide: http://goo.gl/UuDpKm
So far, there is only one module available that checks some HTTP error responses and obtains the server version from them and from the HTTP headers.
This tool has been developed as part of a dissertation for the "Information Technology and Communications Security" master's degree at the UOC University (www.uoc.edu) - http://goo.gl/UCTkcZ