Whenever you research a certain vulnerability ask yourself these questions and please answer them for us
Does the exploited service write a log?
(check ls -lrt /var/log or lsof +D /var/log/ or lsof | grep servicename)
Does a system service write a log?
(e.g. check with tail -f /var/log/messages)
Does it write an event in that log for an exploitation attempt?
Does it write an event in case of successful exploitation?
Does that log line contain specific values that shouldn't normally appear in similar log lines?
(e.g. empty source address, uncommon characters)
Please include an example log line
Does exploitation generate other events that are directly caused by my actions? (e.g. user login)
Does exploitation create temporary files? (e.g. an XML in a temp folder)
Could you provide simple shell commands to check if someone has previously expolited that vulnerability?
(e.g. egrep "specific-url" /var/log/service.log, zgrep "specific-url" /var/log/service/*.gz)
Could you provide a quick fix that can block explots until the vendor provides a solution?
(e.g. add line in server-side script to drop all requests that contain ":;" in their User-Agent field)