This indicates an attack attempt against an Information Disclosure vulnerability in dnaTools.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application while handling crafted HTTP requests. A remote attacker can gain access to files outside of www directory, via a crafted HTTP request.
dnaTools dnaLIMS 4-2015s13
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Currently we are unaware of any vendor supplied patch or updates available for this issue.