OSEC

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[Full-disclosure] [SECURITY] CVE-2010-4172: Apache Tomcat Manager application XSS vulnerability

From: Mark Thomas (marktapache.org)
Date: Mon Nov 22 2010 - 13:03:21 CST


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Hash: SHA1

CVE-2010-4172: Apache Tomcat Manager application XSS vulnerability

Severity: Tomcat 7.0.x - Low, Tomcat 6.0.x - Moderate

Vendor: The Apache Software Foundation

Versions Affected:
- - Tomcat 7.0.0 to 7.0.4
  - Not affected in default configuration.
  - Affected if CSRF protection is disabled
  - Additional XSS issues if web applications are untrusted
- - Tomcat 6.0.12 to 6.0.29
  - Affected in default configuration
  - Additional XSS issues if web applications are untrusted
- - Tomcat 5.5.x
  - Not affected

Description:
The session list screen (provided by sessionList.jsp) in affected versions uses the orderBy and sort request parameters without applying filtering and therefore is vulnerable to a cross-site scripting attack.
Users should be aware that Tomcat 6 does not use httpOnly for session cookies by default so this vulnerability could expose session cookies from the manager application to an attacker.
A review of the Manager application by the Apache Tomcat security team identified additional XSS vulnerabilities if the web applications deployed were not trusted.

Example:
GET /manager/html/sessions?path=/&sort="><script>alert('xss')</script>order=ASC&action=injectSessions&refresh=Refresh+Sessions+list

Mitigation:
Users of affected versions should apply one of the following mitigations
- - Tomcat 7.0.0 to 7.0.4
  - Remove the Manager application
  - Remove the sessionList.jsp and sessionDetail.jsp files
  - Ensure the CSRF protection is enabled
  - Apply the patch 7.0.4 patch (see below)
  - Update to 7.0.5 when released
- - Tomcat 6.0.12 to 6.0.29
  - Remove the Manager application
  - Remove the sessionList.jsp and sessionDetail.jsp files
  - Apply the patch for 6.0.29 (see below)
  - Update to 6.0.30 when released

No release date has been set for the next Tomcat 7.0.x and Tomcat 6.0.x
releases.

Credit:
The original issue was discovered by Adam Muntner of Gotham Digital Science.
Additional issues were identified by the Tomcat security team as a result of reviewing the original issue.

References:
http://tomcat.apache.org/security.html
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/security-6.html

Note: The patches
The Apache Tomcat Security Team

****************
Patch for 6.0.29
****************

Index: webapps/manager/WEB-INF/jsp/sessionDetail.jsp
===================================================================
- --- webapps/manager/WEB-INF/jsp/sessionDetail.jsp (revision 1037769)
+++ webapps/manager/WEB-INF/jsp/sessionDetail.jsp (working copy)
-30,8 +30,10
 <% String path = (String) request.getAttribute("path");
    Session currentSession = (Session)request.getAttribute("currentSession");
    HttpSession currentHttpSession = currentSession.getSession();
- - String currentSessionId = currentSession.getId();
- - String submitUrl = ((HttpServletRequest)pageContext.getRequest()).getRequestURL().toString();
+ String currentSessionId = JspHelper.escapeXml(currentSession.getId());
+ String submitUrl = JspHelper.escapeXml(
+ ((HttpServletRequest) pageContext.getRequest()).getRequestURI() +
+ "?path=" + path);
 %>
 <head>
     <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"/>
-45,7 +47,7
         <title>Sessions Administration: details for <%= currentSessionId %></title>
 </head>
 <body>
- -<h1>Details for Session <%= JspHelper.escapeXml(currentSessionId) %></h1>
+<h1>Details for Session <%= currentSessionId %></h1>
  <table style="text-align: left;" border="0">
   <tr>
-54,7 +56,7
   </tr>
   <tr>
     <th>Guessed Locale</th>
- - <td><%= JspHelper.guessDisplayLocaleFromSession(currentSession) %></td>
+ <td><%= JspHelper.escapeXml(JspHelper.guessDisplayLocaleFromSession(currentSession)) %></td>
   </tr>
   <tr>
     <th>Guessed User</th>
-120,7 +122,7
            String attributeName = (String) attributeNamesEnumeration.nextElement();
 %>
                 <tr>
- - <td align="center"><form action="<%= submitUrl %>"><div><input type="hidden" name="path" value="<%= path %>" /><input type="hidden" name="action" value="removeSessionAttribute" /><input type="hidden" name="sessionId" value="<%= currentSessionId %>" /><input type="hidden" name="attributeName" value="<%= attributeName %>" /><input type="submit" value="Remove" /></div></form></td>
+ <td align="center"><form action="<%= submitUrl %>"><div><input type="hidden" name="action" value="removeSessionAttribute" /><input type="hidden" name="sessionId" value="<%= currentSessionId %>" /><input type="hidden" name="attributeName" value="<%= JspHelper.escapeXml(attributeName) %>" /><input type="submit" value="Remove" /></div></form></td>
                         <td><%= JspHelper.escapeXml(attributeName) %></td>
                         <td><% Object attributeValue = currentHttpSession.getAttribute(attributeName); %><span title="<%= attributeValue == null ? "" : attributeValue.getClass().toString() %>"><%= JspHelper.escapeXml(attributeValue) %></span></td>
                 </tr>
Index: webapps/manager/WEB-INF/jsp/sessionsList.jsp
===================================================================
- --- webapps/manager/WEB-INF/jsp/sessionsList.jsp (revision 1037769)
+++ webapps/manager/WEB-INF/jsp/sessionsList.jsp (working copy)
-26,7 +26,9
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
 <% String path = (String) request.getAttribute("path");
- - String submitUrl = ((HttpServletRequest)pageContext.getRequest()).getRequestURI() + "?path=" + path;
+ String submitUrl = JspHelper.escapeXml(
+ ((HttpServletRequest) pageContext.getRequest()).getRequestURI() +
+ "?path=" + path);
    Collection activeSessions = (Collection) request.getAttribute("activeSessions");
 %>
 <head>
-38,10 +40,10
         <meta name="author" content="Cedrik LIME"/>
         <meta name="copyright" content="copyright 2005-2010 the Apache Software Foundation"/>
         <meta name="robots" content="noindex,nofollow,noarchive"/>
- - <title>Sessions Administration for <%= path %></title>
+ <title>Sessions Administration for <%= JspHelper.escapeXml(path) %></title>
 </head>
 <body>
- -<h1>Sessions Administration for <%= path %></h1>
+<h1>Sessions Administration for <%= JspHelper.escapeXml(path) %></h1>
  <p>Tips:</p>
 <ul>
-55,13 +57,13
 <form action="<%= submitUrl %>" method="post" id="sessionsForm">
         <fieldset><legend>Active HttpSessions informations</legend>
                 <input type="hidden" name="action" id="sessionsFormAction" value="injectSessions"/>
- - <input type="hidden" name="sort" id="sessionsFormSort" value="<%= (String) request.getAttribute("sort") %>"/>
+ <input type="hidden" name="sort" id="sessionsFormSort" value="<%= JspHelper.escapeXml(request.getAttribute("sort")) %>"/>
                 <% String order = (String) request.getAttribute("order");
                    if (order == null || "".equals(order)) {
                            order = "ASC";
                    }
                 %>
- - <input type="hidden" name="order" id="sessionsFormSortOrder" value="<%= order %>"/>
+ <input type="hidden" name="order" id="sessionsFormSortOrder" value="<%= JspHelper.escapeXml(order) %>"/>
                 <input type="submit" name="refresh" id="refreshButton" value="Refresh Sessions list" onclick="document.getElementById('sessionsFormAction').value='refreshSessions'; return true;"/>
                 <%= JspHelper.formatNumber(activeSessions.size()) %> active Sessions<br/>
                 <table border="1" cellpadding="2" cellspacing="2" width="100%">
-95,13 +97,13
 <% Iterator iter = activeSessions.iterator();
    while (iter.hasNext()) {
            Session currentSession = (Session) iter.next();
- - String currentSessionId = currentSession.getId();
+ String currentSessionId = JspHelper.escapeXml(currentSession.getId());
 %>
                                 <tr>
                                         <td>
- -<input type="checkbox" name="sessionIds" value="<%= currentSessionId %>" /><a href="<%= submitUrl %>&amp;action=sessionDetail&amp;sessionId=<%= currentSessionId %>" target="_blank"><%= JspHelper.escapeXml(currentSessionId) %></a>
+<input type="checkbox" name="sessionIds" value="<%= currentSessionId %>" /><a href="<%= submitUrl %>&amp;action=sessionDetail&amp;sessionId=<%= currentSessionId %>" target="_blank"><%= currentSessionId %></a>
                                         </td>
- - <td style="text-align: center;"><%= JspHelper.guessDisplayLocaleFromSession(currentSession) %></td>
+ <td style="text-align: center;"><%= JspHelper.escapeXml(JspHelper.guessDisplayLocaleFromSession(currentSession)) %></td>
                                         <td style="text-align: center;"><%= JspHelper.guessDisplayUserFromSession(currentSession) %></td>
                                         <td style="text-align: center;"><%= JspHelper.getDisplayCreationTimeForSession(currentSession) %></td>
                                         <td style="text-align: center;"><%= JspHelper.getDisplayLastAccessedTimeForSession(currentSession) %></td>

***************
Patch for 7.0.4
***************

Index: webapps/manager/WEB-INF/jsp/sessionDetail.jsp
===================================================================
- --- webapps/manager/WEB-INF/jsp/sessionDetail.jsp (revision 1037768)
+++ webapps/manager/WEB-INF/jsp/sessionDetail.jsp (working copy)
-30,9 +30,10
 <% String path = (String) request.getAttribute("path");
    Session currentSession = (Session)request.getAttribute("currentSession");
    HttpSession currentHttpSession = currentSession.getSession();
- - String currentSessionId = currentSession.getId();
- - String submitUrl = response.encodeURL(((HttpServletRequest)
- - pageContext.getRequest()).getRequestURL().toString());
+ String currentSessionId = JspHelper.escapeXml(currentSession.getId());
+ String submitUrl = JspHelper.escapeXml(response.encodeURL(
+ ((HttpServletRequest) pageContext.getRequest()).getRequestURI() +
+ "?path=" + path));
 %>
 <head>
     <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"/>
-46,7 +47,7
     <title>Sessions Administration: details for <%= currentSessionId %></title>
 </head>
 <body>
- -<h1>Details for Session <%= JspHelper.escapeXml(currentSessionId) %></h1>
+<h1>Details for Session <%= currentSessionId %></h1>
  <table style="text-align: left;" border="0">
   <tr>
-55,7 +56,7
   </tr>
   <tr>
     <th>Guessed Locale</th>
- - <td><%= JspHelper.guessDisplayLocaleFromSession(currentSession) %></td>
+ <td><%= JspHelper.escapeXml(JspHelper.guessDisplayLocaleFromSession(currentSession)) %></td>
   </tr>
   <tr>
     <th>Guessed User</th>
-89,7 +90,6
  <form method="post" action="<%= submitUrl %>">
   <div>
- - <input type="hidden" name="path" value="<%= path %>" />
     <input type="hidden" name="sessionId" value="<%= currentSessionId %>" />
     <input type="hidden" name="action" value="sessionDetail" />
     <input type="submit" value="Refresh" />
-131,10 +131,9
             <td align="center">
                 <form method="post" action="<%= submitUrl %>">
                     <div>
- - <input type="hidden" name="path" value="<%= path %>" />
                         <input type="hidden" name="action" value="removeSessionAttribute" />
                         <input type="hidden" name="sessionId" value="<%= currentSessionId %>" />
- - <input type="hidden" name="attributeName" value="<%= attributeName %>" />
+ <input type="hidden" name="attributeName" value="<%= JspHelper.escapeXml(attributeName) %>" />
                         <%
                           if ("Primary".equals(request.getAttribute("sessionType"))) {
                         %>
-156,7 +155,6
  <form method="post" action="<%=submitUrl%>">
   <p style="text-align: center;">
- - <input type="hidden" name="path" value="<%= path %>" />
     <input type="submit" value="Return to session list" />
   </p>
 </form>
Index: webapps/manager/WEB-INF/jsp/sessionsList.jsp
===================================================================
- --- webapps/manager/WEB-INF/jsp/sessionsList.jsp (revision 1037768)
+++ webapps/manager/WEB-INF/jsp/sessionsList.jsp (working copy)
-28,8 +28,9
  <%page import="org.apache.catalina.manager.DummyProxySession"%><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
 <% String path = (String) request.getAttribute("path");
- - String submitUrl = response.encodeURL(((HttpServletRequest)
- - pageContext.getRequest()).getRequestURI() + "?path=" + path);
+ String submitUrl = JspHelper.escapeXml(response.encodeURL(
+ ((HttpServletRequest) pageContext.getRequest()).getRequestURI() +
+ "?path=" + path));
    Collection activeSessions = (Collection) request.getAttribute("activeSessions");
 %>
 <head>
-41,10 +42,10
     <meta name="author" content="Cedrik LIME"/>
     <meta name="copyright" content="copyright 2005-2010 the Apache Software Foundation"/>
     <meta name="robots" content="noindex,nofollow,noarchive"/>
- - <title>Sessions Administration for <%= path %></title>
+ <title>Sessions Administration for <%= JspHelper.escapeXml(path) %></title>
 </head>
 <body>
- -<h1>Sessions Administration for <%= path %></h1>
+<h1>Sessions Administration for <%= JspHelper.escapeXml(path) %></h1>
  <p>Tips:</p>
 <ul>
-58,13 +59,13
 <form action="<%= submitUrl %>" method="post" id="sessionsForm">
     <fieldset><legend>Active HttpSessions informations</legend>
         <input type="hidden" name="action" id="sessionsFormAction" value="injectSessions"/>
- - <input type="hidden" name="sort" id="sessionsFormSort" value="<%= (String) request.getAttribute("sort") %>"/>
+ <input type="hidden" name="sort" id="sessionsFormSort" value="<%= JspHelper.escapeXml(request.getAttribute("sort")) %>"/>
         <% String order = (String) request.getAttribute("order");
            if (order == null || "".equals(order)) {
                order = "ASC";
            }
         %>
- - <input type="hidden" name="order" id="sessionsFormSortOrder" value="<%= order %>"/>
+ <input type="hidden" name="order" id="sessionsFormSortOrder" value="<%= JspHelper.escapeXml(order) %>"/>
         <input type="submit" name="refresh" id="refreshButton" value="Refresh Sessions list" onclick="document.getElementById('sessionsFormAction').value='refreshSessions'; return true;"/>
         <%= JspHelper.formatNumber(activeSessions.size()) %> active Sessions<br/>
         <table border="1" cellpadding="2" cellspacing="2" width="100%">
-100,7 +101,7
 <% Iterator iter = activeSessions.iterator();
    while (iter.hasNext()) {
        Session currentSession = (Session) iter.next();
- - String currentSessionId = currentSession.getId();
+ String currentSessionId = JspHelper.escapeXml(currentSession.getId());
        String type;
        if (currentSession instanceof DeltaSession) {
            if (((DeltaSession) currentSession).isPrimarySession()) {
-121,13 +122,13
                             out.print(currentSessionId);
                         } else {
                       %>
- - <a href="<%= submitUrl %>&amp;action=sessionDetail&amp;sessionId=<%= currentSessionId %>&amp;sessionType=<%= type %>"><%= JspHelper.escapeXml(currentSessionId) %></a>
+ <a href="<%= submitUrl %>&amp;action=sessionDetail&amp;sessionId=<%= currentSessionId %>&amp;sessionType=<%= type %>"><%= currentSessionId %></a>
                       <%
                         }
                       %>
                     </td>
                     <td style="text-align: center;"><%= type %></td>
- - <td style="text-align: center;"><%= JspHelper.guessDisplayLocaleFromSession(currentSession) %></td>
+ <td style="text-align: center;"><%= JspHelper.escapeXml(JspHelper.guessDisplayLocaleFromSession(currentSession)) %></td>
                     <td style="text-align: center;"><%= JspHelper.guessDisplayUserFromSession(currentSession) %></td>
                     <td style="text-align: center;"><%= JspHelper.getDisplayCreationTimeForSession(currentSession) %></td>
                     <td style="text-align: center;"><%= JspHelper.getDisplayLastAccessedTimeForSession(currentSession) %></td>
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