Updated tomcat6 packages that fix multiple security issues are now available for JBoss Enterprise Web Server 2.0.0 for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Apache Tomcat is a servlet container.

It was found that sending a request without a session identifier to a protected resource could bypass the Cross-Site Request Forgery (CSRF) prevention filter. A remote attacker could use this flaw to perform CSRF attacks against applications that rely on the CSRF prevention filter and do not contain internal mitigation for CSRF.
(CVE-2012-4431)

A flaw was found in the way Tomcat handled sendfile operations when using the HTTP NIO (Non-Blocking I/O) connector and HTTPS. A remote attacker could use this flaw to cause a denial of service (infinite loop). The HTTP NIO connector is used by default in JBoss Enterprise Web Server. The Apache Portable Runtime (APR) connector from the Tomcat Native library was not affected by this flaw. (CVE-2012-4534)

Multiple weaknesses were found in the Tomcat DIGEST authentication implementation, effectively reducing the security normally provided by DIGEST authentication. A remote attacker could use these flaws to perform replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887)

A denial of service flaw was found in the way the Tomcat HTTP NIO connector enforced limits on the permitted size of request headers. A remote attacker could use this flaw to trigger an OutOfMemoryError by sending a specially crafted request with very large headers. The HTTP NIO connector is used by default in JBoss Enterprise Web Server. The APR connector from the Tomcat Native library was not affected by this flaw. (CVE-2012-2733)

Warning: Before applying the update, back up your existing JBoss Enterprise Web Server installation (including all applications and configuration files).

Users of Tomcat should upgrade to these updated packages, which resolve these issues. Tomcat must be restarted for this update to take effect.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:0631 advisory.

    JBoss Web is a web container based on Apache Tomcat. It provides a single     deployment platform for the JavaServer Pages (JSP) and Java Servlet     technologies.

    Multiple weaknesses were found in the JBoss Web DIGEST authentication     implementation, effectively reducing the security normally provided by     DIGEST authentication. A remote attacker could use these flaws to perform     replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886,     CVE-2012-5887)

    Warning: Before applying this update, back up your existing JBoss     Enterprise Web Platform installation (including all applications and     configuration files).

    All users of JBoss Enterprise Web Platform 5.2.0 on Red Hat Enterprise     Linux 4, 5, and 6 are advised to upgrade to these updated packages. The     JBoss server process must be restarted for the update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version number, the instance of Apache Tomcat 5.5.x listening on the remote host is prior to 5.5.36. It is, therefore, affected by the following vulnerabilities :

  - Replay-countermeasure functionality in HTTP Digest     Access Authentication tracks cnonce values instead of     nonce values, which makes it easier for attackers to     bypass access restrictions by sniffing the network for     valid requests.  (CVE-2012-5885)

  - HTTP Digest Access Authentication implementation caches     information about the authenticated user, which could     potentially allow an attacker to bypass authentication     via session ID. (CVE-2012-5886)

  - HTTP Digest Access Authentication implementation does     not properly check for stale nonce values with     enforcement of proper credentials,	which allows an     attacker to bypass restrictions by sniffing requests.
    (CVE-2012-5887)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update of tomcat5 fixed the following security issues :

  - tomcat: cnonce tracking weakness. (CVE-2012-5885)

  - tomcat: stale nonce weakness. (CVE-2012-5887)

  - tomcat: authentication caching weakness. (CVE-2012-5886)

  - tomcat: affected by slowloris DoS. (CVE-2012-5568)

  - tomcat: Bypass of security constraints. (CVE-2012-3546)

The remote Solaris system is missing necessary patches to address security updates :

  - java/org/apache/coyote/http11/InternalNioInputBuffer.jav     a in the HTTP NIO connector in Apache Tomcat 6.x before     6.0.36 and 7.x before 7.0.28 does not properly restrict     the request-header size, which allows remote attackers     to cause a denial of service (memory consumption) via a     large amount of header data. (CVE-2012-2733)

  - org/apache/catalina/realm/RealmBase.java in Apache     Tomcat 6.x before 6.0.36 and 7.x before 7.0.30, when     FORM authentication is used, allows remote attackers to     bypass security-constraint checks by leveraging a     previous setUserPrincipal call and then placing     /j_security_check at the end of a URI. (CVE-2012-3546)

  - org/apache/catalina/filters/CsrfPreventionFilter.java in     Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32     allows remote attackers to bypass the cross-site request     forgery (CSRF) protection mechanism via a request that     lacks a session identifier. (CVE-2012-4431)

  - org/apache/tomcat/util/net/NioEndpoint.java in Apache     Tomcat 6.x before 6.0.36 and 7.x before 7.0.28, when the     NIO connector is used in conjunction with sendfile and     HTTPS, allows remote attackers to cause a denial of     service (infinite loop) by terminating the connection     during the reading of a response. (CVE-2012-4534)

  - The replay-countermeasure functionality in the HTTP     Digest Access Authentication implementation in Apache     Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x     before 7.0.30 tracks cnonce (aka client nonce) values     instead of nonce (aka server nonce) and nc (aka     nonce-count) values, which makes it easier for remote     attackers to bypass intended access restrictions by     sniffing the network for valid requests, a different     vulnerability than CVE-2011-1184. (CVE-2012-5885)

  - The HTTP Digest Access Authentication implementation in     Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36,     and 7.x before 7.0.30 caches information about the     authenticated user within the session state, which makes     it easier for remote attackers to bypass authentication     via vectors related to the session ID. (CVE-2012-5886)

  - The HTTP Digest Access Authentication implementation in     Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36,     and 7.x before 7.0.30 does not properly check for stale     nonce values in conjunction with enforcement of proper     credentials, which makes it easier for remote attackers     to bypass intended access restrictions by sniffing the     network for valid requests. (CVE-2012-5887)

- fix bnc#793394 - bypass of security constraints     (CVE-2012-3546)

  - apache-tomcat-CVE-2012-3546.patch     http://svn.apache.org/viewvc?view=revision&revision=1381     035

  - fix bnc#793391 - bypass of CSRF prevention filter     (CVE-2012-4431)

  - apache-tomcat-CVE-2012-4431.patch     http://svn.apache.org/viewvc?view=revision&revision=1394     456

  - document how to protect against slowloris DoS     (CVE-2012-5568/bnc#791679) in README.SUSE

  - fixes bnc#791423 - cnonce tracking weakness     (CVE-2012-5885) bnc#791424 - authentication caching     weakness (CVE-2012-5886) bnc#791426 - stale nonce     weakness (CVE-2012-5887)

  -     apache-tomcat-CVE-2009-2693-CVE-2009-2901-CVE-2009-2902.
    patch     http://svn.apache.org/viewvc?view=revision&revision=1380     829

  - fix bnc#789406 - HTTP NIO connector OOM DoS via a     request with large headers (CVE-2012-2733)

  - http://svn.apache.org/viewvc?view=revision&revision=1356208

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2013-370:01 advisory.

    Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet     and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by     Sun under the Java Community Process.
    Tomcat is developed in an open and participatory environment and released under the Apache Software     License. Tomcat is intended to be a collaboration of the best-of-breed developers from around the world.
    We invite you to participate in this open development project. To learn more about getting involved, click     here.
    Security issues fixed with this release:
    CVE-2012-3546     org/apache/catalina/realm/RealmBase.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.30, when     FORM authentication is used, allows remote attackers to bypass security-constraint checks by leveraging a     previous setUserPrincipal call and then placing /j_security_check at the end of a URI.
    CVE-2012-5885     The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache     Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce)     values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for     remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a     different vulnerability than CVE-2011-1184.
    CVE-2012-5886     The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before     6.0.36, and 7.x before 7.0.30 caches information about the authenticated user within the session state,     which makes it easier for remote attackers to bypass authentication via vectors related to the session ID.
    CVE-2012-5887     The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before     6.0.36, and 7.x before 7.0.30 does not properly check for stale nonce values in conjunction with     enforcement of proper credentials, which makes it easier for remote attackers to bypass intended access     restrictions by sniffing the network for valid requests.
    Fixed bugs:
     The RELINK script is now called only if required bu the user: this solves some potential data loss     windows when a problem occured duting Tomcat start if the RELINK script was running.
     Previously, the tomcat server would remove the single- or double-quotes from cookie names but the then     the cookie values would be empty when passed to a servlet. This has been fixed.
     The OPTION request did not return the TRACE method as an allowed method and incorrectly reported TRACE as     an allowed method. This has been fixed.
     Previously, Tomcat crashed with a NullPointerException if the context.xml file did not specify the     docBase property. This situation is now handled and the path name to the context is used as     docBase.Reminder: when deploying a context, the docBase attribute is mandatory.
     On IBM S/390 and 64-bit PowerPC systems, the Tomcat Administration Tool crashed and accessing failed with     HTTP 404 because the JSP pre-compilation was disabled. JSP is now pre-compiled to prevent compilation at     runtime and the Tomcat Administration Tool is accessible.
     tomcat reported a NullPointerException when a context was deployed with a web application and the     etc/localhost/[webapp].xml file existed; this has been fixed.
     Added the missing tomcat-juli.jar library in Tomcat which prevented java.util.logging from working.
     The /etc/init.d/tomcat5 script returned an incorrect exit status when stopped. This has been fixed.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update of tomcat6 fixes the following security issues :

  - denial of service. (CVE-2012-4534)

  - tomcat: HTTP NIO connector OOM DoS via a request with     large headers. (CVE-2012-2733)

  - tomcat: cnonce tracking weakness. (CVE-2012-5885)

  - tomcat: authentication caching weakness. (CVE-2012-5886)

  - tomcat: stale nonce weakness. (CVE-2012-5887)

  - tomcat: affected by slowloris DoS. (CVE-2012-5568)

  - tomcat: Bypass of security constraints. (CVE-2012-3546)

  - tomcat: bypass of CSRF prevention filter.
    (CVE-2012-4431)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
76234	RHEL 5 / 6 : JBoss Web Server (RHSA-2013:0266)	Nessus	Red Hat Local Security Checks	2014/6/26	2021/1/14	medium
234426	RHEL 6 : jbossweb (RHSA-2013:0631)	Nessus	Red Hat Local Security Checks	2025/4/15	2025/4/15	medium
62986	Apache Tomcat 5.5.x < 5.5.36 DIGEST Authentication Multiple Security Weaknesses	Nessus	Web Servers	2012/11/21	2024/5/6	medium
64431	SuSE 10 Security Update : tomcat5 (ZYPP Patch Number 8397)	Nessus	SuSE Local Security Checks	2013/2/4	2021/1/19	medium
80791	Oracle Solaris Third-Party Patch Update : tomcat (multiple_vulnerabilities_in_apache_tomcat3)	Nessus	Solaris Local Security Checks	2015/1/19	2021/1/14	medium
74854	openSUSE Security Update : tomcat6 (openSUSE-SU-2012:1700-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	medium
290018	MiracleLinux 3 : tomcat5-5.5.23-0jpp.38.0.1.AXS3 (AXSA:2013-370:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	medium
64430	SuSE 11.2 Security Update : tomcat6 (SAT Patch Number 7208)	Nessus	SuSE Local Security Checks	2013/2/4	2021/1/19	medium

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