9.1
CRITICAL
CVE-2020-12523
Phoenix Contact mGuard Switch Port Reinit Vulnerability
Description

On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource

INFO

Published Date :

Dec. 17, 2020, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 4:59 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-12523 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Phoenixcontact tc_mguard_rs4000_4g_vzw_vpn_firmware
2 Phoenixcontact tc_mguard_rs4000_4g_att_vpn_firmware
3 Phoenixcontact fl_mguard_rs4004_tx\/dtx_firmware
4 Phoenixcontact fl_mguard_rs4004_tx\/dtx_vpn_firmware
5 Phoenixcontact tc_mguard_rs4000_3g_vpn_firmware
6 Phoenixcontact tc_mguard_rs4000_4g_vpn_firmware
7 Phoenixcontact innominate_mguard_rs4000_4tx\/tx_firmware
8 Phoenixcontact innominate_mguard_rs4000_4tx\/tx_vpn_firmware
9 Phoenixcontact innominate_mguard_rs4000_4tx\/3g\/tx_vpn_firmware
10 Phoenixcontact tc_mguard_rs4000_4g_vzw_vpn
11 Phoenixcontact tc_mguard_rs4000_4g_vpn
12 Phoenixcontact tc_mguard_rs4000_4g_att_vpn
13 Phoenixcontact tc_mguard_rs4000_3g_vpn
14 Phoenixcontact fl_mguard_rs4004_tx\/dtx_vpn
15 Phoenixcontact fl_mguard_rs4004_tx\/dtx
16 Phoenixcontact innominate_mguard_rs4000_4tx\/tx
17 Phoenixcontact innominate_mguard_rs4000_4tx\/tx_vpn
18 Phoenixcontact innominate_mguard_rs4000_4tx\/3g\/tx_vpn
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-12523.

URL Resource
https://cert.vde.com/en-us/advisories/vde-2020-046 Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2020-046 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-12523 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-12523 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://cert.vde.com/en-us/advisories/vde-2020-046
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 21, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://cert.vde.com/en-us/advisories/vde-2020-046 No Types Assigned https://cert.vde.com/en-us/advisories/vde-2020-046 Third Party Advisory
    Added CWE NIST CWE-909
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_att_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_att_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\/dtx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:fl_mguard_rs4004_tx\/dtx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\/dtx_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:fl_mguard_rs4004_tx\/dtx_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_3g_vpn_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_3g_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\/tx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\/tx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\/tx_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\/tx_vpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\/3g\/tx_vpn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 8.8.3 OR cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\/3g\/tx_vpn:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-12523 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-12523 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.21 }} -0.01%

score

0.58973

percentile

CVSS31 - Vulnerability Scoring System
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