Update random seed logic (#262)

* Update util.go

* Update job.go

rand.Seed updated just before usage

* Update util.go

revert

* Updated CHANGELOG.MD with a description of the bug fix.

Co-authored-by: Joona Hoikkala <joohoi@users.noreply.github.com>

CHANGELOG.md

@@ -9,6 +9,7 @@
     - Added support to output "all" formats (specify the path/filename sans file extension and ffuf will add the appropriate suffix for the filetype)
 
   - Changed
+    - Fixed a bug related to the autocalibration feature making the random seed initialization also to take place before autocalibration needs it.
     - Added tls renegotiation flag to fix #193 in http.Client
     - Fixed HTML report to display select/combo-box for rows per page (and increased default from 10 to 250 rows).
     - Added Host information to JSON output file

pkg/ffuf/job.go

@@ -331,6 +331,7 @@ func (j *Job) handleRecursionJob(resp Response) {
 //CalibrateResponses returns slice of Responses for randomly generated filter autocalibration requests
 func (j *Job) CalibrateResponses() ([]Response, error) {
 	cInputs := make([]string, 0)
+	rand.Seed(time.Now().UnixNano())
 	if len(j.Config.AutoCalibrationStrings) < 1 {
 		cInputs = append(cInputs, "admin"+RandomString(16)+"/")
 		cInputs = append(cInputs, ".htaccess"+RandomString(16))