Date: Tue, 22 Nov 2016 09:57:41 +0000 From: Mark Thomas <markt@...che.org> To: oss-security@...ts.openwall.com Subject: [SECURITY] CVE-2016-6816 Apache Tomcat Information Disclosure CVE-2016-6816 Apache Tomcat Information Disclosure Severity: Important Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.0.M11 Apache Tomcat 8.5.0 to 8.5.6 Apache Tomcat 8.0.0.RC1 to 8.0.38 Apache Tomcat 7.0.0 to 7.0.72 Apache Tomcat 6.0.0 to 6.0.47 Earlier, unsupported versions may also be affected. Description The code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own. Mitigation Users of affected versions should apply one of the following mitigations - Upgrade to Apache Tomcat 9.0.0.M13 or later (Apache Tomcat 9.0.0.M12 has the fix but was not released) - Upgrade to Apache Tomcat 8.5.8 or later (Apache Tomcat 8.5.7 has the fix but was not released) - Upgrade to Apache Tomcat 8.0.39 or later - Upgrade to Apache Tomcat 7.0.73 or later - Upgrade to Apache Tomcat 6.0.48 or later Credit: This issue was discovered by Regis Leroy from Makina Corpus. References:  http://tomcat.apache.org/security-9.html  http://tomcat.apache.org/security-8.html  http://tomcat.apache.org/security-7.html  http://tomcat.apache.org/security-6.html
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