crowdsec/pkg/hubtest/nucleirunner.go

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package hubtest
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"strings"
"time"
log "github.com/sirupsen/logrus"
)
type NucleiConfig struct {
Path string `yaml:"nuclei_path"`
OutputDir string `yaml:"output_dir"`
CmdLineOptions []string `yaml:"cmdline_options"`
}
var NucleiTemplateFail = errors.New("Nuclei template failed")
func (nc *NucleiConfig) RunNucleiTemplate(testName string, templatePath string, target string) error {
tstamp := time.Now().Unix()
//templatePath is the full path to the template, we just want the name ie. "sqli-random-test"
tmp := strings.Split(templatePath, "/")
template := strings.Split(tmp[len(tmp)-1], ".")[0]
outputPrefix := fmt.Sprintf("%s/%s_%s-%d", nc.OutputDir, testName, template, tstamp)
args := []string{
"-u", target,
"-t", templatePath,
"-o", outputPrefix + ".json",
}
args = append(args, nc.CmdLineOptions...)
cmd := exec.Command(nc.Path, args...)
var out bytes.Buffer
var outErr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &outErr
err := cmd.Run()
if err := os.WriteFile(outputPrefix+"_stdout.txt", out.Bytes(), 0644); err != nil {
log.Warningf("Error writing stdout: %s", err)
}
if err := os.WriteFile(outputPrefix+"_stderr.txt", outErr.Bytes(), 0644); err != nil {
log.Warningf("Error writing stderr: %s", err)
}
if err != nil {
log.Warningf("Error running nuclei: %s", err)
log.Warningf("Stdout saved to %s", outputPrefix+"_stdout.txt")
log.Warningf("Stderr saved to %s", outputPrefix+"_stderr.txt")
log.Warningf("Nuclei generated output saved to %s", outputPrefix+".json")
return err
} else if len(out.String()) == 0 {
//No stdout means no finding, it means our test failed
return NucleiTemplateFail
}
return nil
}