Vulnerability identifier: #VU64545

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-4590

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Tomcat
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can obtain "Tomcat internals" information by leveraging the presence of an untrusted web application with a context.xml, web.xml, *.jspx, *.tagx, or *.tld XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Tomcat: 6.0.0 - 6.0.38, 7.0.0 - 7.0.49, 8.0.0 - 8.0.0 RC1

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External links
http://advisories.mageia.org/MGASA-2014-0148.html
http://marc.info/?l=bugtraq&m=144498216801440&w=2
http://secunia.com/advisories/59036
http://secunia.com/advisories/59722
http://secunia.com/advisories/59724
http://secunia.com/advisories/59873
http://svn.apache.org/viewvc?view=revision&revision=1549528
http://svn.apache.org/viewvc?view=revision&revision=1549529
http://svn.apache.org/viewvc?view=revision&revision=1558828
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/security-8.html
http://www.debian.org/security/2016/dsa-3530
http://www.mandriva.com/security/advisories?name=MDVSA-2015:052
http://www.mandriva.com/security/advisories?name=MDVSA-2015:084
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
http://www.securityfocus.com/bid/65768
http://www.vmware.com/security/advisories/VMSA-2014-0008.html
http://www-01.ibm.com/support/docview.wss?uid=swg21667883
http://www-01.ibm.com/support/docview.wss?uid=swg21675886
http://www-01.ibm.com/support/docview.wss?uid=swg21677147
http://www-01.ibm.com/support/docview.wss?uid=swg21678231
http://bugzilla.redhat.com/show_bug.cgi?id=1069911
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013
http://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
http://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
http://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
http://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
http://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
http://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.