Apache Tomcat 8.5.0 < 8.5.56

high Nessus Plugin ID 138097

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Synopsis

The remote Apache Tomcat server is affected by a vulnerability

Description

The version of Tomcat installed on the remote host is prior to 8.5.56. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_8.5.56_security-8 advisory.

- A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.
(CVE-2020-11996)

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

Solution

Upgrade to Apache Tomcat version 8.5.56 or later.

Plugin Details

Severity: High

ID: 138097

File Name: tomcat_8_5_56.nasl

Version: 1.11

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 7/3/2020

Updated: 5/23/2024

Configuration: Enable thorough checks

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-11996

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:tomcat:8

Required KB Items: installed_sw/Apache Tomcat

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/7/2020

Vulnerability Publication Date: 6/26/2020

Reference Information

CVE: CVE-2020-11996

IAVA: 2020-A-0292-S

Detections

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