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Oracle Linux 7: ELSA-2021-2099-02 Severe Wildfly Security Update

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Calendar Grey October 10, 2016
Scroller Redhat
Crucial patch and vulnerability remedy for tomcat6 on Red Hat Enterprise Linux 6 to tackle severe concerns.
An update for tomcat6 is now available for Red Hat Enterprise Linux 6

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.
Security Fix(es):
* It was discovered that the Tomcat packages installed certain configuration files read by the Tomcat initialization script as writeable to the tomcat group. A member of the group or a malicious web application deployed on Tomcat could use this flaw to escalate their privileges. (CVE-2016-6325)
* It was found that several Tomcat session persistence mechanisms could allow a remote, authenticated user to bypass intended SecurityManager restrictions and execute arbitrary code in a privileged context via a web application that placed a crafted object in a session. (CVE-2016-0714)
* It was discovered that tomcat used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a CGI script to an attacker-controlled proxy via a malicious HTTP request. (CVE-2016-5388)
* A directory traversal flaw was found in Tomcat's RequestUtil.java. A remote, authenticated user could use this flaw to bypass intended SecurityManager restrictions and list a parent directory via a '/..' in a pathname used by a web application in a getResource, getResourceAsStream, or getResourcePaths call, as demonstrated by the $CATALINA_BASE/webapps directory. (CVE-2015-5174)
* It was found that Tomcat could reveal the presence of a directory even when that directory was protected by a security constraint. A user could make a request to a directory via a URL not ending with a slash and, depending on whether Tomcat redirected that request, could confirm whether that directory existed. (CVE-2015-5345)
* It was found that Tomcat allowed the StatusManagerServlet to be loaded by a web application when a security manager was configured. This allowed a web application to list all deployed web applications and expose sensitive information such as session IDs. (CVE-2016-0706)
Red Hat would like to thank Scott Geary (VendHQ) for reporting CVE-2016-5388. The CVE-2016-6325 issue was discovered by Red Hat Product Security.
Bug Fix(es):
* Due to a bug in the tomcat6 spec file, the catalina.out file's md5sum, size, and mtime attributes were compared to the file's attributes at installation time. Because these attributes change after the service is started, the "rpm -V" command previously failed. With this update, the attributes mentioned above are ignored in the RPM verification and the catalina.out file now passes the verification check. (BZ#1357123)

References

https://access.redhat.com/security/cve/CVE-2015-5174 https://access.redhat.com/security/cve/CVE-2015-5345 https://access.redhat.com/security/cve/CVE-2016-0706 https://access.redhat.com/security/cve/CVE-2016-0714 https://access.redhat.com/security/cve/CVE-2016-5388 https://access.redhat.com/security/cve/CVE-2016-6325 https://access.redhat.com/security/updates/classification#important https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.45

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: tomcat6-6.0.24-98.el6_8.src.rpm
noarch: tomcat6-6.0.24-98.el6_8.noarch.rpm tomcat6-admin-webapps-6.0.24-98.el6_8.noarch.rpm tomcat6-docs-webapp-6.0.24-98.el6_8.noarch.rpm tomcat6-el-2.1-api-6.0.24-98.el6_8.noarch.rpm tomcat6-javadoc-6.0.24-98.el6_8.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-98.el6_8.noarch.rpm tomcat6-lib-6.0.24-98.el6_8.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-98.el6_8.noarch.rpm tomcat6-webapps-6.0.24-98.el6_8.noarch.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: tomcat6-6.0.24-98.el6_8.src.rpm
noarch: tomcat6-6.0.24-98.el6_8.noarch.rpm tomcat6-admin-webapps-6.0.24-98.el6_8.noarch.rpm tomcat6-docs-webapp-6.0.24-98.el6_8.noarch.rpm tomcat6-el-2.1-api-6.0.24-98.el6_8.noarch.rpm tomcat6-javadoc-6.0.24-98.el6_8.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-98.el6_8.noarch.rpm tomcat6-lib-6.0.24-98.el6_8.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-98.el6_8.noarch.rpm tomcat6-webapps-6.0.24-98.el6_8.noarch.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: tomcat6-6.0.24-98.el6_8.src.rpm
noarch: tomcat6-6.0.24-98.el6_8.noarch.rpm tomcat6-admin-webapps-6.0.24-98.el6_8.noarch.rpm tomcat6-docs-webapp-6.0.24-98.el6_8.noarch.rpm tomcat6-el-2.1-api-6.0.24-98.el6_8.noarch.rpm tomcat6-javadoc-6.0.24-98.el6_8.noarch.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:2045-01
Product: Red Hat Enterprise Linux
Issue date: 2016-10-10

Topic

An update for tomcat6 is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - noarch

Red Hat Enterprise Linux HPC Node (v. 6) - noarch

Red Hat Enterprise Linux Server (v. 6) - noarch

Red Hat Enterprise Linux Workstation (v. 6) - noarch

Bugs Fixed

1265698 - CVE-2015-5174 tomcat: URL Normalization issue

1311082 - CVE-2016-0714 tomcat: Security Manager bypass via persistence mechanisms

1311087 - CVE-2016-0706 tomcat: security manager bypass via StatusManagerServlet

1311089 - CVE-2015-5345 tomcat: directory disclosure

1353809 - CVE-2016-5388 Tomcat: CGI sets environmental variable based on user supplied Proxy request header

1357123 - rpm -V tomcat6 fails due on /var/log/tomcat6/catalina.out [rhel-6.8.z]

1367447 - CVE-2016-6325 tomcat: tomcat writable config files allow privilege escalation

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