Detections
Analytics
pfSense 2.4.x < 2.4.5-p1 Multiple Vulnerabilities
high Nessus Plugin ID 146206
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Synopsis
The remote firewall host is affected by multiple vulnerabilities.Description
According to its self-reported version number, the remote pfSense install is a version 2.4.x prior to 2.4.5-p1. It is, therefore, affected by the following vulnerabilities in its subcomponents:- Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an 'NXNSAttack' issue. This is triggered by random subdomains in the NSDNAME in NS records. (CVE-2020-12662)
- Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
(CVE-2020-12663)
- json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. (CVE-2020-12762)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to pfSense version 2.4.5-p1 or later, or apply patches as noted in the vendor advisory.See Also
https://docs.netgate.com/pfsense/en/latest/releases/2-4-5-p1.html
Plugin Details
Severity: High
ID: 146206
File Name: pfsense_2_4_5_p1.nasl
Version: 1.3
Type: remote
Family: Firewalls
Published: 2/4/2021
Updated: 1/23/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
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-2020-12762
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:pfsense:pfsense, cpe:/a:bsdperimeter:pfsense, cpe:/a:netgate:pfsense
Required KB Items: Host/pfSense
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/9/2020
Vulnerability Publication Date: 5/9/2020