Apache Tomcat 6.0.x < 6.0.48 / 7.0.x < 7.0.73 / 8.0.x < 8.0.39 / 8.5.x < 8.5.8 / 9.0.x < 9.0.0.M13 Multiple Vulnerabilities

critical Nessus Plugin ID 95438
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Apache Tomcat server is affected by multiple vulnerabilities.

Description

According to its self-reported version number, the Apache Tomcat service running on the remote host is 6.0.x prior to 6.0.48, 7.0.x prior to 7.0.73, 8.0.x prior to 8.0.39, 8.5.x prior to 8.5.8, or 9.0.x prior to 9.0.0.M13. It is, therefore, affected by multiple vulnerabilities :

- A flaw exists that is triggered when handling request lines containing certain invalid characters. An unauthenticated, remote attacker can exploit this, by injecting additional headers into responses, to conduct HTTP response splitting attacks. (CVE-2016-6816)

- A denial of service vulnerability exists in the HTTP/2 parser due to an infinite loop caused by improper parsing of overly large headers. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to cause a denial of service condition.
Note that this vulnerability only affects 8.5.x versions. (CVE-2016-6817)

- A remote code execution vulnerability exists in the JMX listener in JmxRemoteLifecycleListener.java due to improper deserialization of Java objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2016-8735)

Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Apache Tomcat version 6.0.48 / 7.0.73 / 8.0.39 / 8.5.8 / 9.0.0.M13 or later.

See Also

http://www.nessus.org/u?1e8a81e1

http://www.nessus.org/u?1c7e7b23

http://www.nessus.org/u?833cb56a

http://www.nessus.org/u?87d6ed56

http://www.nessus.org/u?5f7bb039

Plugin Details

Severity: Critical

ID: 95438

File Name: tomcat_8_5_8.nasl

Version: 1.15

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 12/1/2016

Updated: 3/11/2020

Dependencies: tomcat_error_version.nasl, tomcat_win_installed.nbin, apache_tomcat_nix_installed.nbin

Risk Information

CVSS Score Source: CVE-2016-8735

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/a:apache:tomcat

Required KB Items: installed_sw/Apache Tomcat

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/22/2016

Vulnerability Publication Date: 10/10/2016

Reference Information

CVE: CVE-2016-6816, CVE-2016-6817, CVE-2016-8735

BID: 94097, 94461, 94463