ALAS-2016-681


Amazon Linux AMI Security Advisory: ALAS-2016-681
Advisory Release Date: 2016-03-29 15:30 Pacific
Severity: Medium

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