Kubernetes 1.13.x < 1.13.10 / 1.14.x < 1.14.6 / 1.15.x < 1.15.3 DoS

high Nessus Plugin ID 135030
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Synopsis

The remote host contains an application affected by a denial of service vulnerability.

Description

The version of Kubernetes installed on the remote host is a version prior to 1.13.10, or 1.14.x prior to 1.14.6, or 1.15.x prior to 1.15.3. It is, therefore, affected by the following denial of service vulnerabilities :

- A denial of service (DoS) vulnerability exists in HTTP/2 due to some HTTP/2 implementations inefficiently handling a large queue of ping responses. An unauthenticated, remote attacker can exploit this issue, via continual ping requests, to cause the system to stop responding. (CVE-2019-9512)
- A denial of service (DoS) vulnerability exists in HTTP/2 due to some HTTP/2 implementations inefficiently handling a queue of RST_STREAM frames. An unauthenticated, remote attacker can exploit this issue, by opening a number of streams and sending an invalid request over each stream, to cause the system to stop responding. (CVE-2019-9514)

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 Kubernetes 1.13.10, 1.14.6, 1.15.3 or later, please refer to the vendor advisory.

See Also

http://www.nessus.org/u?e8a25528

Plugin Details

Severity: High

ID: 135030

File Name: kubernetes_1_15_3.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 3/31/2020

Updated: 4/8/2021

Dependencies: kube_detect.nbin

Risk Information

CVSS Score Source: CVE-2019-9512

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

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

CVSS v3

Risk Factor: High

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

Vulnerability Information

CPE: cpe:/a:kubernetes:kubernetes, cpe:/a:google:kubernetes

Required KB Items: installed_sw/Kubernetes

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2019

Vulnerability Publication Date: 8/13/2019

Reference Information

CVE: CVE-2019-9512, CVE-2019-9514