112 lines
3.0 KiB
Go
112 lines
3.0 KiB
Go
package rabbitmq
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import (
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"context"
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"net"
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"net/url"
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"strings"
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"time"
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amqp "github.com/rabbitmq/amqp091-go"
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regexp "github.com/wasilibs/go-re2"
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"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
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"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
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)
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type Scanner struct{}
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// Ensure the Scanner satisfies the interface at compile time.
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var _ detectors.Detector = (*Scanner)(nil)
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var (
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keyPat = regexp.MustCompile(`\b(?:amqps?):\/\/[\S]{3,50}:([\S]{3,50})@[-.%\w\/:]+\b`)
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)
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// Keywords are used for efficiently pre-filtering chunks.
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// Use identifiers in the secret preferably, or the provider name.
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func (s Scanner) Keywords() []string {
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return []string{"amqp"}
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}
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// FromData will find and optionally verify RabbitMQ secrets in a given set of bytes.
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func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
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dataStr := string(data)
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var uniqueMatches = make(map[string]string)
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for _, matches := range keyPat.FindAllStringSubmatch(dataStr, -1) {
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uniqueMatches[matches[0]] = matches[1]
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}
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for urlMatch, password := range uniqueMatches {
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// Skip common test hosts.
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if strings.Contains(urlMatch, "127.0.0.1") ||
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strings.Contains(urlMatch, "localhost") ||
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strings.Contains(urlMatch, "contoso.com") ||
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strings.Contains(urlMatch, "example.com") {
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continue
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}
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// Skip findings where the password only has "*" characters, this is a redacted password
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if strings.Trim(password, "*") == "" {
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continue
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}
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parsedURL, err := url.Parse(urlMatch)
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if err != nil {
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continue
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}
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if _, ok := parsedURL.User.Password(); !ok {
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continue
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}
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r := detectors.Result{
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DetectorType: detectorspb.DetectorType_RabbitMQ,
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Raw: []byte(urlMatch),
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Redacted: strings.TrimSpace(strings.Replace(parsedURL.String(), password, "********", -1)),
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}
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if verify {
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isVerified, verificationErr := s.verify(urlMatch)
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r.Verified = isVerified
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if verificationErr != nil {
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r.SetVerificationError(verificationErr, urlMatch)
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}
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}
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if !r.Verified {
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// Skip unverified findings where the password starts with a `$` - it's almost certainly a variable.
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if strings.HasPrefix(password, "$") {
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continue
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}
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}
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results = append(results, r)
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}
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return results, nil
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}
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func (s Scanner) verify(url string) (bool, error) {
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// Add a timeout.
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// https://github.com/rabbitmq/amqp091-go/blob/dc67c21576c230f589636319f05b7262915313e6/examples_test.go#L22
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conn, err := amqp.DialConfig(url, amqp.Config{
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Dial: func(network, addr string) (net.Conn, error) {
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return net.DialTimeout(network, addr, 10*time.Second)
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},
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})
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defer func() {
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if conn != nil {
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_ = conn.Close()
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}
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}()
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return err == nil, err
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}
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func (s Scanner) Type() detectorspb.DetectorType {
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return detectorspb.DetectorType_RabbitMQ
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}
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func (s Scanner) Description() string {
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return "RabbitMQ is an open-source message broker software that originally implemented the Advanced Message Queuing Protocol (AMQP). RabbitMQ credentials can be used to access and manage message queues."
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}
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