bc63ca1f2f
- ElasticsearchSource: POST _search API with query_string, parse hits._source - KibanaSource: GET saved_objects/_find API with kbn-xsrf header - SplunkSource: GET search/jobs/export API with newline-delimited JSON parsing - All sources use ciLogKeyPattern for key detection - Tests use httptest mocks for each API endpoint
115 lines
2.9 KiB
Go
115 lines
2.9 KiB
Go
package sources
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"time"
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"golang.org/x/time/rate"
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"github.com/salvacybersec/keyhunter/pkg/providers"
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"github.com/salvacybersec/keyhunter/pkg/recon"
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)
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// KibanaSource searches exposed Kibana instances for API keys in saved objects
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// such as dashboards, visualizations, and index patterns. Many Kibana instances
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// are left unauthenticated, exposing the saved objects API.
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type KibanaSource struct {
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BaseURL string
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Registry *providers.Registry
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Limiters *recon.LimiterRegistry
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Client *Client
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}
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var _ recon.ReconSource = (*KibanaSource)(nil)
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func (s *KibanaSource) Name() string { return "kibana" }
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func (s *KibanaSource) RateLimit() rate.Limit { return rate.Every(2 * time.Second) }
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func (s *KibanaSource) Burst() int { return 3 }
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func (s *KibanaSource) RespectsRobots() bool { return false }
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func (s *KibanaSource) Enabled(_ recon.Config) bool { return true }
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// kibanaSavedObjectsResponse represents the Kibana saved objects API response.
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type kibanaSavedObjectsResponse struct {
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SavedObjects []kibanaSavedObject `json:"saved_objects"`
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}
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type kibanaSavedObject struct {
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ID string `json:"id"`
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Type string `json:"type"`
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Attributes json.RawMessage `json:"attributes"`
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}
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func (s *KibanaSource) Sweep(ctx context.Context, query string, out chan<- recon.Finding) error {
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base := s.BaseURL
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if base == "" {
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base = "http://localhost:5601"
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}
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client := s.Client
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if client == nil {
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client = NewClient()
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}
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queries := BuildQueries(s.Registry, "kibana")
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if len(queries) == 0 {
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return nil
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}
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for _, q := range queries {
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if err := ctx.Err(); err != nil {
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return err
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}
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if s.Limiters != nil {
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if err := s.Limiters.Wait(ctx, s.Name(), s.RateLimit(), s.Burst(), false); err != nil {
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return err
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}
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}
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// Search saved objects (dashboards and visualizations).
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searchURL := fmt.Sprintf(
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"%s/api/saved_objects/_find?type=visualization&type=dashboard&search=%s&per_page=20",
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base, url.QueryEscape(q),
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)
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, searchURL, nil)
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if err != nil {
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continue
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}
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req.Header.Set("kbn-xsrf", "true")
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resp, err := client.Do(ctx, req)
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if err != nil {
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continue
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}
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data, err := io.ReadAll(io.LimitReader(resp.Body, 512*1024))
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_ = resp.Body.Close()
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if err != nil {
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continue
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}
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var result kibanaSavedObjectsResponse
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if err := json.Unmarshal(data, &result); err != nil {
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continue
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}
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for _, obj := range result.SavedObjects {
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attrs := string(obj.Attributes)
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if ciLogKeyPattern.MatchString(attrs) {
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out <- recon.Finding{
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ProviderName: q,
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Source: fmt.Sprintf("%s/app/kibana#/%s/%s", base, obj.Type, obj.ID),
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SourceType: "recon:kibana",
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Confidence: "medium",
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DetectedAt: time.Now(),
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}
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}
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}
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}
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return nil
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}
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