143 lines
3.7 KiB
Go
143 lines
3.7 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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"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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// GitHubActionsSource searches GitHub Actions workflow run logs for leaked API
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// keys. Workflow logs are public for public repositories and frequently contain
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// accidentally printed secrets, debug output with credentials, or insecure
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// echo statements that expose environment variables.
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type GitHubActionsSource struct {
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Token string
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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 = (*GitHubActionsSource)(nil)
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func (s *GitHubActionsSource) Name() string { return "ghactions" }
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func (s *GitHubActionsSource) RateLimit() rate.Limit { return rate.Every(2 * time.Second) }
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func (s *GitHubActionsSource) Burst() int { return 3 }
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func (s *GitHubActionsSource) RespectsRobots() bool { return false }
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// Enabled requires a GitHub token (reuses GitHubToken from SourcesConfig).
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func (s *GitHubActionsSource) Enabled(_ recon.Config) bool { return s.Token != "" }
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// ghActionsRunsResponse represents the GitHub Actions workflow runs list.
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type ghActionsRunsResponse struct {
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WorkflowRuns []ghActionsRun `json:"workflow_runs"`
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}
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type ghActionsRun struct {
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ID int64 `json:"id"`
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LogsURL string `json:"logs_url"`
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HTMLURL string `json:"html_url"`
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Status string `json:"status"`
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Conclusion string `json:"conclusion"`
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}
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func (s *GitHubActionsSource) Sweep(ctx context.Context, _ string, out chan<- recon.Finding) error {
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base := s.BaseURL
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if base == "" {
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base = "https://api.github.com"
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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, "ghactions")
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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 for workflow runs via the Actions API.
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searchURL := fmt.Sprintf("%s/search/code?q=%s+path:.github/workflows", base, q)
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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("Authorization", "Bearer "+s.Token)
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req.Header.Set("Accept", "application/vnd.github.v3+json")
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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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var runs ghActionsRunsResponse
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if err := json.NewDecoder(resp.Body).Decode(&runs); err != nil {
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_ = resp.Body.Close()
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continue
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}
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_ = resp.Body.Close()
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for _, run := range runs.WorkflowRuns {
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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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// Fetch log content.
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logURL := fmt.Sprintf("%s/actions/runs/%d/logs", base, run.ID)
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logReq, err := http.NewRequestWithContext(ctx, http.MethodGet, logURL, nil)
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if err != nil {
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continue
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}
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logReq.Header.Set("Authorization", "Bearer "+s.Token)
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logReq.Header.Set("Accept", "application/vnd.github.v3+json")
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logResp, err := client.Do(ctx, logReq)
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if err != nil {
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continue
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}
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body, err := io.ReadAll(io.LimitReader(logResp.Body, 256*1024))
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_ = logResp.Body.Close()
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if err != nil {
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continue
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}
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if ciLogKeyPattern.Match(body) {
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out <- recon.Finding{
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ProviderName: q,
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Source: logURL,
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SourceType: "recon:ghactions",
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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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