Detections
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EulerOS Virtualization 2.9.1 : dnsmasq (EulerOS-SA-2021-2189)

medium Nessus Plugin ID 151535

Synopsis

The remote EulerOS Virtualization host is missing a security update.

Description

According to the version of the dnsmasq package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :

 - A flaw was found in dnsmasq in versions before 2.85.
 When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.(CVE-2021-3448)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected dnsmasq package.

See Also

http://www.nessus.org/u?f2ca1b56

Plugin Details

Severity: Medium

ID: 151535

File Name: EulerOS_SA-2021-2189.nasl

Version: 1.3

Type: local

Published: 7/13/2021

Updated: 12/8/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.4

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-2021-3448

CVSS v3

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.6

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:dnsmasq, cpe:/o:huawei:euleros:uvp:2.9.1

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/12/2021

Reference Information

CVE: CVE-2021-3448