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Photon OS 1.0: Dnsmasq PHSA-2021-1.0-0431

medium Nessus Plugin ID 153031

Synopsis

The remote PhotonOS host is missing multiple security updates.

Description

An update of the dnsmasq package has been released.

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

Solution

Update the affected Linux packages.

See Also

https://github.com/vmware/photon/wiki/Security-Updates-1.0-431.md

Plugin Details

Severity: Medium

ID: 153031

File Name: PhotonOS_PHSA-2021-1_0-0431_dnsmasq.nasl

Version: 1.4

Type: local

Published: 9/7/2021

Updated: 12/1/2023

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:vmware:photonos:dnsmasq, cpe:/o:vmware:photonos:1.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2021

Vulnerability Publication Date: 4/8/2021

Reference Information

CVE: CVE-2021-3448