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Apache Tomcat Manager Cross Site Scripting

Apache Tomcat Manager Cross Site Scripting
Posted Nov 23, 2010
Authored by Mark Thomas | Site tomcat.apache.org

The session list screen (provided by sessionList.jsp) in affected versions of Apache Tomcat Manager uses the orderBy and sort request parameters without applying filtering and therefore is vulnerable to a cross-site scripting attack. Versions 7.0.0 through 7.0.4 and 6.0.12 through 6.0.29 are affected.

tags | advisory, xss
advisories | CVE-2010-4172
SHA-256 | 486777c2531b3377eea0df5a8570190ea9f8e536d75e7989f9c974dc66148c85

Apache Tomcat Manager Cross Site Scripting

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-----BEGIN PGP SIGNED MESSAGE-----
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
%>&action=sessionDetail&sessionId=<%= currentSessionId %>"
target="_blank"><%= JspHelper.escapeXml(currentSessionId) %></a>
+<input type="checkbox" name="sessionIds" value="<%= currentSessionId
%>" /><a href="<%= submitUrl
%>&action=sessionDetail&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
%>&action=sessionDetail&sessionId=<%= currentSessionId
%>&sessionType=<%= type %>"><%=
JspHelper.escapeXml(currentSessionId) %></a>
+ <a href="<%= submitUrl
%>&action=sessionDetail&sessionId=<%= currentSessionId
%>&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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