It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending '/j_security_check' to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session.
(CVE-2012-3546)

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 blocking IO (BIO) connector, which is not vulnerable to this issue, is used by default in Scientific Linux 6.
(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)

Tomcat must be restarted for this update to take effect.

It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending '/j_security_check' to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session.
(CVE-2012-3546)

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)

Tomcat must be restarted for this update to take effect.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-0640 advisory.

    - Resolves: CVE-2012-3439 rhbz#882008 three DIGEST authentication
    - Resolves: CVE-2012-3546, rhbz#913034 Bypass of security constraints.

Tenable has extracted the preceding description block directly from the Oracle 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 the version of one or more Juniper NSM servers running on the remote host, it is potentially affected by the following vulnerabilities related to the included Apache Tomcat version :

  - An error exists related to handling requests containing     several parameters that could allow denial of service     attacks. (CVE-2012-0022)

  - An error exists related to handling partial HTTP     requests that could allow denial of service attacks.
    (CVE-2012-5568)

  - Errors exist related to handling DIGEST authentication     that could allow security mechanisms to be bypassed.
    (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2013-279:02 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 version 2.0. Tomcat is intended to be a collaboration of the best-of-breed developers from around     the world.
    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-2012-4534     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-2012-5885     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:
     Due to a mistake in the spec file, Apache Tomcat initscripts were located in the /etc/init.d directory.
    They should be located in the /etc/rc.d/init.d directory. This has been fixed by updatign the spec file.
     When a web application used its own class loader, the Tomcat WebappClassLoader could end up in a deadlock     when compiling JSPs because of a synchronization bug. This has been fixed.
     When changing the TOMCAT_USER in the /etc/tomcat6/tomcat6.conf file to a user whose UID differed from the     user GID, the status returned an incorrect tomcat6 status. This has been fixed.
     Tomcat returned a message that the resource was not available when trying to import a non-existing page     with JavaScript fragments in the URL parameters. Tomcat now supports HTML filtering and instead reports     that the resource is missing.

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.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-0623 advisory.

    - Resolves: rhbz 882010 CVE-2012-3439 CVE-2012-5885 CVE-2012-5886 CVE-2012-5887
    - Resolves: rhbz 883692 CVE-2012-4534 Denial of service when using

Tenable has extracted the preceding description block directly from the Oracle 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.

It was discovered that the Apache Tomcat HTTP NIO connector incorrectly handled header data. A remote attacker could cause a denial of service by sending requests with a large amount of header data. (CVE-2012-2733)

It was discovered that Apache Tomcat incorrectly handled DIGEST authentication. A remote attacker could possibly use these flaws to perform a replay attack and bypass authentication. (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A flaw was found in the way the tomcat6 init script handled the tomcat6-initd.log log file. A malicious web application deployed on Tomcat could use this flaw to perform a symbolic link attack to change the ownership of an arbitrary system file to that of the tomcat user, allowing them to escalate their privileges to root. (CVE-2013-1976)

Note: With this update, tomcat6-initd.log has been moved from /var/log/tomcat6/ to the /var/log/ directory.

It was found that the SLSA-2013:0623 update did not correctly fix CVE-2012-5887, a weakness in the Tomcat DIGEST authentication implementation. A remote attacker could use this flaw to perform replay attacks in some circumstances. Additionally, this problem also prevented users from being able to authenticate using DIGEST authentication. (CVE-2013-2051)

Tomcat must be restarted for this update to take effect.

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
65243	Scientific Linux Security Update : tomcat6 on SL6.x (noarch) (20130311)	Nessus	Scientific Linux Local Security Checks	2013/3/13	2021/1/14	medium
65244	Scientific Linux Security Update : tomcat5 on SL5.x i386/x86_64 (20130312)	Nessus	Scientific Linux Local Security Checks	2013/3/13	2021/1/14	medium
68790	Oracle Linux 5 : tomcat5 (ELSA-2013-0640)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	medium
71023	Juniper NSM Servers < 2012.2R5 Multiple Vulnerabilities	Nessus	Misc.	2013/11/21	2022/4/11	medium
289779	MiracleLinux 4 : tomcat6-6.0.24-52.AXS4 (AXSA:2013-279:02)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/2/9	medium
68786	Oracle Linux 6 : tomcat6 (ELSA-2013-0623)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/11/1	medium
63024	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS : tomcat6 vulnerabilities (USN-1637-1)	Nessus	Ubuntu Local Security Checks	2012/11/23	2019/9/19	medium
66665	Scientific Linux Security Update : tomcat6 on SL6.x (noarch) (20130528)	Nessus	Scientific Linux Local Security Checks	2013/5/29	2021/1/14	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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