The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-515:02 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. 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-2011-4858     Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form     parameters without restricting the ability to trigger hash collisions predictably, which allows remote     attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
    CVE-2012-0022     Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 uses an inefficient approach     for handling parameters, which allows remote attackers to cause a denial of service (CPU consumption) via     a request that contains many parameters and parameter values, a different vulnerability than     CVE-2011-4858.

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.

According to its self-reported version number, the instance of Apache Tomcat 5.x listening on the remote host is prior to 5.5.35. It is, therefore, affected by a denial of service vulnerability.

Large numbers of crafted form parameters can cause excessive CPU consumption due to hash collisions.

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

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0475 advisory.

  - tomcat: hash table collisions CPU usage DoS (oCERT-2011-003) (CVE-2011-4858)

  - tomcat: large number of parameters DoS (CVE-2012-0022)

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

The remote host is affected by the vulnerability described in GLSA-201206-24 (Apache Tomcat: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Apache Tomcat. Please       review the CVE identifiers referenced below for details.
  Impact :

    The vulnerabilities allow an attacker to cause a Denial of Service, to       hijack a session, to bypass authentication, to inject webscript, to       enumerate valid usernames, to read, modify and overwrite arbitrary files,       to bypass intended access restrictions, to delete work-directory files,       to discover the server&rsquo;s hostname or IP, to bypass read permissions for       files or HTTP headers, to read or write files outside of the intended       working directory, and to obtain sensitive information by reading a log       file.
  Workaround :

    There is no known workaround at this time.

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

It was found that the Java hashCode() method implementation was susceptible to predictable hash collisions. A remote attacker could use this flaw to cause Tomcat to use an excessive amount of CPU time by sending an HTTP request with a large number of parameters whose names map to the same hash value. This update introduces a limit on the number of parameters processed per request to mitigate this issue.
The default limit is 512 for parameters and 128 for headers. These defaults can be changed by setting the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties.
(CVE-2011-4858)

It was found that Tomcat did not handle large numbers of parameters and large parameter values efficiently. A remote attacker could make Tomcat use an excessive amount of CPU time by sending an HTTP request containing a large number of parameters or large parameter values.
This update introduces limits on the number of parameters and headers processed per request to address this issue. Refer to the CVE-2011-4858 description for information about the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties.
(CVE-2012-0022) 

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

The version of VMware vCenter Server installed on the remote host is 4.0 before Update 4a, 4.1 before Update 3, or 5.0 before Update 1.  As such it is potentially affected by multiple vulnerabilities in the embedded Apache Tomcat server and the Oracle (Sun) Java Runtime Environment.

This update of tomcat6 fixes :

  - apache-tomcat-CVE-2012-3544.patch. (bnc#831119)

  - use chown --no-dereference to prevent symlink attacks on     log (bnc#822177#c7/prevents CVE-2013-1976)

  - Fix tomcat init scripts generating malformed classpath (     http://youtrack.jetbrains.com/issue/JT-18545 )     bnc#804992 (patch from m407)

  - fix a typo in initscript. (bnc#768772)

  - copy all shell scripts (bnc#818948)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
283958	MiracleLinux 4 : tomcat6-6.0.24-36.AXS4 (AXSA:2012-515:02)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	medium
57540	Apache Tomcat 5.x < 5.5.35 Hash Collision Denial of Service	Nessus	Web Servers	2012/1/13	2024/5/6	medium
58719	RHEL 6 : tomcat6 (RHSA-2012:0475)	Nessus	Red Hat Local Security Checks	2012/4/12	2024/4/21	medium
59677	GLSA-201206-24 : Apache Tomcat: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2012/6/25	2021/1/6	medium
61299	Scientific Linux Security Update : tomcat5 on SL5.x i386/x86_64 (20120411)	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	medium
61300	Scientific Linux Security Update : tomcat6 on SL6.x (20120411)	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	medium
66812	VMware vCenter Server Multiple Vulnerabilities (VMSA-2012-0005)	Nessus	Misc.	2013/6/5	2018/11/15	high
69458	SuSE 11.2 / 11.3 Security Update : tomcat6 (SAT Patch Numbers 8155 / 8156)	Nessus	SuSE Local Security Checks	2013/8/23	2021/1/19	medium

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