Apache Tomcat 7.0.x < 7.0.105 WebSocket DoS

Medium Nessus Plugin ID 138851

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VPR Score: 6.1

Synopsis

The remote Apache Tomcat server is affected by a WebSocket DoS vulnerability

Description

The version of Tomcat installed on the remote host is prior to 7.0.105. It is, therefore, affected by a WebSocket DoS vulnerability. The payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

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 7.0.105 or later.

See Also

http://www.nessus.org/u?dd4dee09

http://www.nessus.org/u?81ec7286

http://www.nessus.org/u?58ae3a4f

Plugin Details

Severity: Medium

ID: 138851

File Name: tomcat_7_0_105.nasl

Version: 1.2

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 2020/07/23

Updated: 2020/07/24

Dependencies: 39446, 130590, 130175

Risk Information

Risk Factor: Medium

VPR Score: 6.1

CVSS Score Source: CVE-2020-13935

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:tomcat

Required KB Items: installed_sw/Apache Tomcat

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/07/07

Vulnerability Publication Date: 2020/07/14

Reference Information

CVE: CVE-2020-13935