Amazon Linux AMI : tomcat7 (ALAS-2017-873)

critical Nessus Plugin ID 102547

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Security constrained bypass in error page mechanism :

While investigating bug 60718, it was noticed that some calls to application listeners in Apache Tomcat 9.0.0.M1 to 9.0.0.M17, 8.5.0 to 8.5.11, 8.0.0.RC1 to 8.0.41, and 7.0.0 to 7.0.75 did not use the appropriate facade object. When running an untrusted application under a SecurityManager, it was therefore possible for that untrusted application to retain a reference to the request or response object and thereby access and/or modify information associated with another web application.(CVE-2017-5664 )

Calls to application listeners did not use the appropriate facade object :

A vulnerability was discovered in tomcat. When running an untrusted application under a SecurityManager it was possible, under some circumstances, for that application to retain references to the request or response objects and thereby access and/or modify information associated with another web application. (CVE-2017-5648)

The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin.
This permitted client and server side cache poisoning in some circumstances.(CVE-2017-7674)

Solution

Run 'yum update tomcat7' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-873.html

Plugin Details

Severity: Critical

ID: 102547

File Name: ala_ALAS-2017-873.nasl

Version: 3.6

Type: local

Agent: unix

Published: 8/18/2017

Updated: 4/18/2018

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:tomcat7, p-cpe:/a:amazon:linux:tomcat7-admin-webapps, p-cpe:/a:amazon:linux:tomcat7-docs-webapp, p-cpe:/a:amazon:linux:tomcat7-el-2.2-api, p-cpe:/a:amazon:linux:tomcat7-javadoc, p-cpe:/a:amazon:linux:tomcat7-jsp-2.2-api, p-cpe:/a:amazon:linux:tomcat7-lib, p-cpe:/a:amazon:linux:tomcat7-log4j, p-cpe:/a:amazon:linux:tomcat7-servlet-3.0-api, p-cpe:/a:amazon:linux:tomcat7-webapps, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 8/17/2017

Reference Information

CVE: CVE-2017-5648, CVE-2017-5664, CVE-2017-7674

ALAS: 2017-873