Medium: tomcat6

Issue Overview:

A directory traversal vulnerability in RequestUtil.java was discovered which allows remote authenticated users to bypass intended SecurityManager restrictions and list a parent directory via a /… (slash dot dot) in a pathname used by a web application in a getResource, getResourceAsStream, or getResourcePaths call. (CVE-2015-5174)

The Mapper component processes redirects before considering security constraints and Filters, which allows remote attackers to determine the existence of a directory via a URL that lacks a trailing / (slash) character. (CVE-2015-5345)

The session-persistence implementation was discovered to mishandle session attributes, which allows remote authenticated users to bypass intended SecurityManager restrictions and execute arbitrary code in a privileged context via a web application that places a crafted object in a session. (CVE-2016-0714)

It was discovered that org.apache.catalina.manager.StatusManagerServlet was not placed on the org/apache/catalina/core/RestrictedServlets.properties list, which allows remote authenticated users to bypass intended SecurityManager restrictions and read arbitrary HTTP requests, and consequently discover session ID values, via a crafted web application. (CVE-2016-0706)

Affected Packages:

tomcat6

Issue Correction:
Run yum update tomcat6 to update your system.

New Packages:

noarch:  
    tomcat6-jsp-2.1-api-6.0.45-1.4.amzn1.noarch  
    tomcat6-6.0.45-1.4.amzn1.noarch  
    tomcat6-admin-webapps-6.0.45-1.4.amzn1.noarch  
    tomcat6-servlet-2.5-api-6.0.45-1.4.amzn1.noarch  
    tomcat6-docs-webapp-6.0.45-1.4.amzn1.noarch  
    tomcat6-el-2.1-api-6.0.45-1.4.amzn1.noarch  
    tomcat6-webapps-6.0.45-1.4.amzn1.noarch  
    tomcat6-lib-6.0.45-1.4.amzn1.noarch  
    tomcat6-javadoc-6.0.45-1.4.amzn1.noarch  
  
src:  
    tomcat6-6.0.45-1.4.amzn1.src  

Additional References

Red Hat: CVE-2015-5174, CVE-2015-5345, CVE-2016-0706, CVE-2016-0714

Mitre: CVE-2015-5174, CVE-2015-5345, CVE-2016-0706, CVE-2016-0714