ALAS-2016-658


Amazon Linux AMI Security Advisory: ALAS-2016-658
Advisory Release Date: 2016-03-10 16:30 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 )

It was found that the expression language resolver evaluated expressions within a privileged code section. A malicious web application could use this flaw to bypass security manager protections. (CVE-2014-7810 )


Affected Packages:

tomcat8


Issue Correction:
Run yum update tomcat8 to update your system.

New Packages:
noarch:
    tomcat8-8.0.30-1.57.amzn1.noarch
    tomcat8-log4j-8.0.30-1.57.amzn1.noarch
    tomcat8-lib-8.0.30-1.57.amzn1.noarch
    tomcat8-admin-webapps-8.0.30-1.57.amzn1.noarch
    tomcat8-javadoc-8.0.30-1.57.amzn1.noarch
    tomcat8-servlet-3.1-api-8.0.30-1.57.amzn1.noarch
    tomcat8-el-3.0-api-8.0.30-1.57.amzn1.noarch
    tomcat8-docs-webapp-8.0.30-1.57.amzn1.noarch
    tomcat8-jsp-2.3-api-8.0.30-1.57.amzn1.noarch
    tomcat8-webapps-8.0.30-1.57.amzn1.noarch

src:
    tomcat8-8.0.30-1.57.amzn1.src