Amazon Linux AMI : tomcat8 (ALAS-2021-1535)

medium Nessus Plugin ID 153161

Synopsis

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

Description

The version of tomcat8 installed on the remote host is prior to 8.5.69-1.88. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1535 advisory.

- Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding;
and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
(CVE-2021-33037)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update tomcat8' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2021-1535.html

https://access.redhat.com/security/cve/CVE-2021-33037

Plugin Details

Severity: Medium

ID: 153161

File Name: ala_ALAS-2021-1535.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/9/2021

Updated: 1/26/2022

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

Risk Information

CVSS Score Source: CVE-2021-33037

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/2/2021

Vulnerability Publication Date: 6/15/2021

Reference Information

CVE: CVE-2021-33037

IAVA: 2021-A-0303-S

ALAS: 2021-1535