Fierce Domain Scan was born out of a frustration while performing a web application security audit. It used to be very time-consuming to discover large swaths of a non-contiguous corporate network, but it doesn't have to be. It's terribly easy to run a scanner against an IP range, but if a network's web presence is distributed across multiple ranges, you can miss huge chunks of networks. Fierce helps solve that problem.
Fierce is a reconnaissance tool written in Perl that quickly scans domains (usually in just a few minutes, assuming no network lag) using a variety of techniques to locate undocumented, internal or just hard-to-find resources via the DNS system.
Latest version Fierce v2
To check out the latest version of Fierce v2 from subversion, simply run the following command:
svn co https://svn.assembla.com/svn/fierce/fierce2/trunk/ fierce2/
To access the documentation for Fierce v2 use the following command:
Additionally, the following resources may be helpful:
- Examples - Specific examples of using Fierce v2.
- Techniques - Details for all of the techniques used by Fierce v2.
- Installing - Documentation for installing Fierce v2.
- Updating - Documentation for updating Fierce v2.
- Fierce::Parser - Documentation on Fierce::Parser XML Parser
- Contributing - Notes for anyone that wants to contribute to Fierce v2.
Bugs / Feature Requests / Patches
Bugs, Feature Requests and Patches can be submitted via email to: fierce [ the at sign ] alerts.assembla.com. You need to register on https://www.assembla.com
If you don't feel like registering, send feedback to jabra [ - at - ] spl0it [ dot ] org.
My GPG key can be found at http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0xA39722171F706B77