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Amazon Linux AMI : tomcat7 / tomcat8 (ALAS-2017-796)

high Nessus Plugin ID 97146

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Synopsis

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

Description

A bug in the error handling of the send file code for the NIO HTTP connector resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body.

Solution

Run 'yum update tomcat7' to update your system.

Run 'yum update tomcat8' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-796.html

Plugin Details

Severity: High

ID: 97146

File Name: ala_ALAS-2017-796.nasl

Version: 3.7

Type: local

Agent: unix

Published: 2/15/2017

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:tomcat8, p-cpe:/a:amazon:linux:tomcat7-docs-webapp, p-cpe:/a:amazon:linux:tomcat8-webapps, p-cpe:/a:amazon:linux:tomcat7-servlet-3.0-api, p-cpe:/a:amazon:linux:tomcat7, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:tomcat7-el-2.2-api, p-cpe:/a:amazon:linux:tomcat8-javadoc, p-cpe:/a:amazon:linux:tomcat8-log4j, p-cpe:/a:amazon:linux:tomcat7-jsp-2.2-api, p-cpe:/a:amazon:linux:tomcat8-jsp-2.3-api, p-cpe:/a:amazon:linux:tomcat7-log4j, p-cpe:/a:amazon:linux:tomcat7-lib, p-cpe:/a:amazon:linux:tomcat7-admin-webapps, p-cpe:/a:amazon:linux:tomcat7-javadoc, p-cpe:/a:amazon:linux:tomcat8-docs-webapp, p-cpe:/a:amazon:linux:tomcat8-servlet-3.1-api, p-cpe:/a:amazon:linux:tomcat8-admin-webapps, p-cpe:/a:amazon:linux:tomcat8-el-3.0-api, p-cpe:/a:amazon:linux:tomcat8-lib, p-cpe:/a:amazon:linux:tomcat7-webapps

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

Patch Publication Date: 2/14/2017

Reference Information

CVE: CVE-2016-8745

ALAS: 2017-796