/**
   * Analyze and categorize each of the parameters in scope.
   *
   * @param helpers The standard burp ExtensionHelpers object.
   * @param messages The set of request messages to be processed.
   */
  private void firstPass(IExtensionHelpers helpers, IHttpRequestResponse[] messages) {
    publish("Examining parameters...");
    for (int i = 0; i < messages.length; i++) {
      publish(100 * i / messages.length);
      messages[i].getHttpService();
      //  Analyze response for cookies
      if (messages[i].getResponse() != null) {
        IResponseInfo responseInfo = helpers.analyzeResponse(messages[i].getResponse());
        List<String> headers = responseInfo.getHeaders();
        for (String header : headers) {
          if (startsWithIgnoreCase(header, "set-cookie:")) {
            processCookieHeader(header);
          }
        }
      }
      IRequestInfo requestInfo = helpers.analyzeRequest(messages[i]);
      if (callbacks.isInScope(requestInfo.getUrl())) {
        byte[] responseBytes = messages[i].getResponse();
        String responseString = "";
        if (responseBytes != null) {
          responseString = helpers.bytesToString(responseBytes);
          inScopeMessagesWithResponses.add(messages[i]);
        }

        List<IParameter> params = requestInfo.getParameters();
        for (IParameter param : params) {
          if ((!ignoreEmpty || param.getValue().length() > 0)
              && !ignoreList.contains(param.getName())) {
            int type = param.getType();
            Map<String, CorrelatedParam> paramMap;
            switch (type) {
              case IParameter.PARAM_URL:
                paramMap = urlParameters;
                break;
              case IParameter.PARAM_BODY:
                paramMap = bodyParameters;
                break;
              case IParameter.PARAM_COOKIE:
                paramMap = cookieParameters;
                break;
              case IParameter.PARAM_JSON:
                paramMap = jsonParameters;
                break;
              default:
                paramMap = null;
                // nothing
            }

            if (paramMap != null) {
              if (messages[i] == null) {
                callbacks.printOutput("Warning... adding null message!");
              }

              if (paramMap.containsKey(param.getName())) {
                paramMap
                    .get(param.getName())
                    .put(param, messages[i], requestInfo, responseString, helpers);
              } else {
                paramMap.put(
                    param.getName(),
                    new CorrelatedParam(param, messages[i], requestInfo, responseString, helpers));
              }
            }
          }
        }
      }
    }
  }
Beispiel #2
0
  @Override
  public List<IScanIssue> scan(
      IBurpExtenderCallbacks callbacks,
      IHttpRequestResponse baseRequestResponse,
      IScannerInsertionPoint insertionPoint) {

    List<IScanIssue> issues = new ArrayList<>();

    IExtensionHelpers helpers = callbacks.getHelpers();
    stderr = new PrintWriter(callbacks.getStderr(), true);

    IRequestInfo reqInfo = helpers.analyzeRequest(baseRequestResponse);

    URL url = reqInfo.getUrl();
    String host = url.getHost();
    int port = url.getPort();

    String system = host.concat(Integer.toString(port));

    // System not yet tested for this vulnerability
    if (!hs.contains(system)) {

      hs.add(system);

      String protocol = url.getProtocol();
      Boolean isSSL = (protocol.equals("https"));

      for (String STATUS_SERVLET_PATH : STATUS_SERVLET_PATHS) {

        try {
          // Test the presence of tomcat console
          URL urlToTest = new URL(protocol, url.getHost(), url.getPort(), STATUS_SERVLET_PATH);
          byte[] statustest = helpers.buildHttpRequest(urlToTest);

          byte[] responseBytes =
              callbacks.makeHttpRequest(url.getHost(), url.getPort(), isSSL, statustest);

          // look for matches of our active check grep string in the response body
          IResponseInfo statusInfo = helpers.analyzeResponse(responseBytes);

          /*
           *  Try basic HTTP Authentication Bruteforcing
           */
          if (statusInfo.getStatusCode() == 401) {

            issues.add(
                new CustomScanIssue(
                    baseRequestResponse.getHttpService(),
                    urlToTest,
                    new CustomHttpRequestResponse(
                        statustest, responseBytes, baseRequestResponse.getHttpService()),
                    "HTTP Basic Authentication - Status Servlet",
                    "A status servlet is protected using HTTP Basic authentication",
                    REMEDY,
                    Risk.Low,
                    Confidence.Certain));

            // Test Weak Passwords
            CustomHttpRequestResponse httpWeakPasswordResult;
            httpWeakPasswordResult = HTTPBasicBruteforce(callbacks, urlToTest);

            if (httpWeakPasswordResult != null) {

              // Retrieve the weak credentials
              String weakCredential = null;
              String weakCredentialDescription = "";
              try {

                IRequestInfo reqInfoPwd =
                    callbacks
                        .getHelpers()
                        .analyzeRequest(
                            baseRequestResponse.getHttpService(),
                            httpWeakPasswordResult.getRequest());
                weakCredential =
                    new String(
                        helpers.base64Decode(HTTPParser.getHTTPBasicCredentials(reqInfoPwd)));
              } catch (Exception ex) {
                stderr.println("Error during Authorization Header parsing " + ex);
              }

              if (weakCredential != null) {
                weakCredentialDescription +=
                    String.format(
                        "<br /><br /> The weak credentials are " + "<b>%s</b><br /><br />",
                        weakCredential);
              }

              issues.add(
                  new CustomScanIssue(
                      baseRequestResponse.getHttpService(),
                      urlToTest,
                      httpWeakPasswordResult,
                      "Status Servlet Weak Password",
                      "Status Servlet is installed on the remote system with a default password"
                          + weakCredentialDescription,
                      "Change default/weak password and/or restrict access to the console only from trusted hosts/networks",
                      Risk.Medium,
                      Confidence.Certain));

              return issues;
            }
          }

          if (statusInfo.getStatusCode() == 200) {

            List<int[]> matches_j2ee = getMatches(responseBytes, GREP_STRING_J2EE, helpers);
            if (matches_j2ee.size() > 0) {

              issues.add(
                  new CustomScanIssue(
                      baseRequestResponse.getHttpService(),
                      helpers.analyzeRequest(baseRequestResponse).getUrl(),
                      new CustomHttpRequestResponse(
                          statustest, responseBytes, baseRequestResponse.getHttpService()),
                      StatusServlet.TITLE,
                      StatusServlet.DESCRIPTION,
                      REMEDY,
                      Risk.Low,
                      Confidence.Certain));

              return issues;
            }

            List<int[]> matches_httpd = getMatches(responseBytes, GREP_STRING_HTTPD, helpers);
            if (matches_httpd.size() > 0) {

              issues.add(
                  new CustomScanIssue(
                      baseRequestResponse.getHttpService(),
                      helpers.analyzeRequest(baseRequestResponse).getUrl(),
                      new CustomHttpRequestResponse(
                          statustest, responseBytes, baseRequestResponse.getHttpService()),
                      StatusServlet.TITLE,
                      StatusServlet.DESCRIPTION,
                      REMEDY,
                      Risk.Low,
                      Confidence.Certain));

              return issues;
            }
          }

        } catch (MalformedURLException ex) {
          stderr.println("Malformed URL Exception " + ex);
        }
      }
    }

    return issues;
  }