RHEL 7 : novnc (RHSA-2020:0754)

medium Nessus Plugin ID 170343

Synopsis

The remote Red Hat host is missing a security update for novnc.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:0754 advisory.

- novnc: XSS vulnerability via the messages propagated to the status field (CVE-2017-18635)

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

Solution

Update the RHEL novnc package based on the guidance in RHSA-2020:0754.

See Also

http://www.nessus.org/u?99343d97

https://access.redhat.com/security/updates/classification/#moderate

https://access.redhat.com/errata/RHSA-2020:0754

https://bugzilla.redhat.com/show_bug.cgi?id=1484711

https://bugzilla.redhat.com/show_bug.cgi?id=1765660

Plugin Details

Severity: Medium

ID: 170343

File Name: redhat-RHSA-2020-0754.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/23/2023

Updated: 4/28/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2017-18635

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:novnc

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/10/2020

Vulnerability Publication Date: 9/25/2019

Reference Information

CVE: CVE-2017-18635

CWE: 79

RHSA: 2020:0754