[SECURITY] CVE-2009-0781 XSS in Apache Tomcat examples web application
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CVE-2009-0781: Apache Tomcat cross-site scripting vulnerability
Severity: low
Vendor:
The Apache Software Foundation
Versions Affected:
Tomcat 6.0.0 to 6.0.18
Tomcat 5.5.0 to 5.5.27
Tomcat 4.1.0 to 4.1.39
Description:
The calendar application in the examples contains invalid HTML which
renders the XSS protection for the time parameter ineffective. An
attacker can therefore perform an XSS attack using the time attribute.
Mitigation:
6.0.x users should do one of the following:
- remove the examples web application
- apply this patch http://svn.apache.org/viewvc?rev=750924&view=rev
- upgrade to 6.0.19 when released
5.5.x users should do one of the following:
- remove the examples web application
- apply this patch http://svn.apache.org/viewvc?rev=750928&view=rev
- upgrade to 5.5.28 when released
4.1.x users should do one of the following:
- remove the examples web application
- apply this patch http://svn.apache.org/viewvc?rev=750927&view=rev
- upgrade to 4.1.40 when released
Example:
http://localhost:8080/examples/jsp/cal/cal2.jsp?time=8am%20STYLE=xss:e/**/xpression(try{a=firstTime}catch(e){firstTime=1;alert('XSS')});
Credit:
This issue was discovered by Deniz Cevik.
References:
http://tomcat.apache.org/security.html
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-4.html
The Apache Tomcat Security Team
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