__________________________________________________________
	
						   The U.S. Department of Energy
					   Computer Incident Advisory Capability
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								 INFORMATION BULLETIN
	
							  Apache Tomcat Vulnerability
									  [Security-4]
	
	July 25, 2007 19:00 GMT                                           Number R-312
	______________________________________________________________________________
	PROBLEM:       The example SendMailServlet page that comes with Apache Tomcat 
				   is vulnerable to cross-site scripting via the "From" field. 
	PLATFORM:      Apache Tomcat 
					 4.0.0 to 4.0.6 
					 4.1.0 to 4.1.36 
	DAMAGE:        A remote attacker may be able to execute arbitrary script 
				   within the security context of the web site running Apache 
				   Tomcat. 
	SOLUTION:      There is no know solution. Please see the bulletin for 
				   recommendations. 
	______________________________________________________________________________
	VULNERABILITY  The risk is LOW. A remote attacker may be able to execute 
	ASSESSMENT:    arbitrary script within the security context of the web site 
				   running Apache Tomcat. 
	______________________________________________________________________________
	LINKS: 
	 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/r-312.shtml 
	 ORIGINAL BULLETIN:  http://tomcat.apache.org/security-4.html 
	 ADDITIONAL LINK:    US-CERT CERT Advisory CAA-2000-02 
						 http://www.cert.org/advisories/CA-2000-02.html 
	 CVE:                http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= 
						 CVE-2007-3383 
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	[***** Start Security-4 *****]
	
	low: Cross-site scripting CVE-2007-3383 
	
	When reporting error messages, the SendMailServlet (part of the examples web 
	application) did not escape user provided data before including it in the 
	output. This enabled a XSS attack. This Servlet now filters the data before 
	use. This issue may be mitigated by undeploying the examples web application. 
	Note that it is recommended that the examples web application is not installed 
	on a production system. 
	
	Affects: 4.0.0-4.0.6, 4.1.0-4.1.36
	
	
	[***** End Security-4 *****]
	_______________________________________________________________________________
	
	CIAC wishes to acknowledge the contributions of Apache for the 
	information contained in this bulletin.
	_______________________________________________________________________________
	
	
	CIAC, the Computer Incident Advisory Capability, is the computer
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