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FreeBSD : py39-pycares -- domain hijacking vulnerability (43e9ffd4-d6e0-11ed-956f-7054d21a9e2a)

medium Nessus Plugin ID 174307

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 43e9ffd4-d6e0-11ed-956f-7054d21a9e2a advisory.

 - A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability. (CVE-2021-3672)

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 packages.

See Also

https://osv.dev/vulnerability/GHSA-c58j-88f5-h53f

http://www.nessus.org/u?857138a9

Plugin Details

Severity: Medium

ID: 174307

File Name: freebsd_pkg_43e9ffd4d6e011ed956f7054d21a9e2a.nasl

Version: 1.1

Type: local

Published: 4/14/2023

Updated: 4/19/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-3672

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py39-pycares, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/9/2023

Vulnerability Publication Date: 8/13/2021

Reference Information

CVE: CVE-2021-3672