Amaan Ullah
0fa069c12f
* enable errcheck and staticcheck for golangci-lint v2 and resolve all issues * skip lint on intentional reference of deprecated DetectorType values
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
package shodankey
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import (
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"context"
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"encoding/json"
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"io"
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"net/http"
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"strings"
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regexp "github.com/wasilibs/go-re2"
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"github.com/trufflesecurity/trufflehog/v3/pkg/common"
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"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
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"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detector_typepb"
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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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client = common.SaneHttpClient()
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// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
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keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"shodan"}) + `\b([a-zA-Z0-9]{32})\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{"shodan"}
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}
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// FromData will find and optionally verify ShodanKey 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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matches := keyPat.FindAllStringSubmatch(dataStr, -1)
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for _, match := range matches {
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resMatch := strings.TrimSpace(match[1])
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s1 := detectors.Result{
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DetectorType: detector_typepb.DetectorType_ShodanKey,
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Raw: []byte(resMatch),
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SecretParts: map[string]string{"key": resMatch},
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}
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if verify {
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s1.Verified = verifyToken(ctx, client, resMatch)
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}
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results = append(results, s1)
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}
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return results, nil
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}
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type shodanInfoRes struct {
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ScanCredits int `json:"scan_credits"`
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UsageLimits struct {
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ScanCredits int `json:"scan_credits"`
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QueryCredits int `json:"query_credits"`
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MonitoredIps int `json:"monitored_ips"`
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} `json:"usage_limits"`
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Plan string `json:"plan"`
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HTTPS bool `json:"https"`
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Unlocked bool `json:"unlocked"`
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QueryCredits int `json:"query_credits"`
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MonitoredIps int `json:"monitored_ips"`
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UnlockedLeft int `json:"unlocked_left"`
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Telnet bool `json:"telnet"`
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}
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func verifyToken(ctx context.Context, client *http.Client, token string) bool {
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://api.shodan.io/api-info?key="+token, nil)
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if err != nil {
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return false
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}
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res, err := client.Do(req)
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if err != nil {
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return false
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}
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defer func() { _ = res.Body.Close() }()
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if res.StatusCode < 200 || res.StatusCode >= 300 {
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return false
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}
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bytes, err := io.ReadAll(res.Body)
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if err != nil {
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return false
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}
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var info shodanInfoRes
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return json.Unmarshal(bytes, &info) == nil
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}
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func (s Scanner) Type() detector_typepb.DetectorType {
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return detector_typepb.DetectorType_ShodanKey
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}
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func (s Scanner) Description() string {
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return "Shodan is a search engine for Internet-connected devices. Shodan API keys can be used to query the Shodan database for information on these devices."
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}
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