9.8
CRITICAL
CVE-2020-6985
Moxa PT-7528/7828 Unauthorized Console Access Vulnerability
Description

In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, these devices use a hard-coded service code for access to the console.

INFO

Published Date :

March 24, 2020, 8:15 p.m.

Last Modified :

March 26, 2020, 7:45 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-6985 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 Moxa pt-7528-24tx-hv_firmware
2 Moxa pt-7528-24tx-hv-hv_firmware
3 Moxa pt-7528-24tx-wv_firmware
4 Moxa pt-7528-24tx-wv-hv_firmware
5 Moxa pt-7528-24tx-wv-wv_firmware
6 Moxa pt-7528-12msc-12tx-4gsfp-hv_firmware
7 Moxa pt-7528-12msc-12tx-4gsfp-hv-hv_firmware
8 Moxa pt-7528-12msc-12tx-4gsfp-wv_firmware
9 Moxa pt-7528-12msc-12tx-4gsfp-wv-wv_firmware
10 Moxa pt-7528-12mst-12tx-4gsfp-hv_firmware
11 Moxa pt-7528-12mst-12tx-4gsfp-hv-hv_firmware
12 Moxa pt-7528-12mst-12tx-4gsfp-wv_firmware
13 Moxa pt-7528-12mst-12tx-4gsfp-wv-wv_firmware
14 Moxa pt-7528-16msc-8tx-4gsfp-hv_firmware
15 Moxa pt-7528-16msc-8tx-4gsfp-hv-hv_firmware
16 Moxa pt-7528-16msc-8tx-4gsfp-wv_firmware
17 Moxa pt-7528-16msc-8tx-4gsfp-wv-wv_firmware
18 Moxa pt-7528-16mst-8tx-4gsfp-hv_firmware
19 Moxa pt-7528-16mst-8tx-4gsfp-hv-hv_firmware
20 Moxa pt-7528-16mst-8tx-4gsfp-wv_firmware
21 Moxa pt-7528-16mst-8tx-4gsfp-wv-wv_firmware
22 Moxa pt-7528-20msc-4tx-4gsfp-hv_firmware
23 Moxa pt-7528-20msc-4tx-4gsfp-hv-hv_firmware
24 Moxa pt-7528-20msc-4tx-4gsfp-wv_firmware
25 Moxa pt-7528-20msc-4tx-4gsfp-wv-wv_firmware
26 Moxa pt-7528-20mst-4tx-4gsfp-hv_firmware
27 Moxa pt-7528-20mst-4tx-4gsfp-hv-hv_firmware
28 Moxa pt-7528-20mst-4tx-4gsfp-wv_firmware
29 Moxa pt-7528-20mst-4tx-4gsfp-wv-wv_firmware
30 Moxa pt-7528-8msc-16tx-4gsfp-hv_firmware
31 Moxa pt-7528-8msc-16tx-4gsfp-hv-hv_firmware
32 Moxa pt-7528-8msc-16tx-4gsfp-wv_firmware
33 Moxa pt-7528-8msc-16tx-4gsfp-wv-wv_firmware
34 Moxa pt-7528-8mst-16tx-4gsfp-hv_firmware
35 Moxa pt-7528-8mst-16tx-4gsfp-hv-hv_firmware
36 Moxa pt-7528-8mst-16tx-4gsfp-wv_firmware
37 Moxa pt-7528-8mst-16tx-4gsfp-wv-wv_firmware
38 Moxa pt-7528-8ssc-16tx-4gsfp-hv-hv_firmware
39 Moxa pt-7528-8ssc-16tx-4gsfp-wv-wv_firmware
40 Moxa pt-7828-f-24_firmware
41 Moxa pt-7828-f-24-24_firmware
42 Moxa pt-7828-f-24-hv_firmware
43 Moxa pt-7828-f-48_firmware
44 Moxa pt-7828-f-48-48_firmware
45 Moxa pt-7828-f-48-hv_firmware
46 Moxa pt-7828-f-hv_firmware
47 Moxa pt-7828-f-hv-hv_firmware
48 Moxa pt-7828-r-24_firmware
49 Moxa pt-7828-r-24-24_firmware
50 Moxa pt-7828-r-24-hv_firmware
51 Moxa pt-7828-r-48_firmware
52 Moxa pt-7828-r-48-48_firmware
53 Moxa pt-7828-r-48-hv_firmware
54 Moxa pt-7828-r-hv_firmware
55 Moxa pt-7828-r-hv-hv_firmware
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-2020-6985.

URL Resource
https://www.us-cert.gov/ics/advisories/icsa-20-056-03 Third Party Advisory US Government Resource

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-2020-6985 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-6985 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 [email protected]

    May. 14, 2024

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

    Mar. 26, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.us-cert.gov/ics/advisories/icsa-20-056-03 No Types Assigned https://www.us-cert.gov/ics/advisories/icsa-20-056-03 Third Party Advisory, US Government Resource
    Added CWE NIST CWE-798
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-24tx-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-24tx-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-24tx-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-24tx-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-24tx-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-24tx-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-24tx-wv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-24tx-wv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-24tx-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-24tx-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12msc-12tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12msc-12tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12msc-12tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12msc-12tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12msc-12tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12msc-12tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12msc-12tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12msc-12tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12mst-12tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12mst-12tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12mst-12tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12mst-12tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12mst-12tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12mst-12tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-12mst-12tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-12mst-12tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16msc-8tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16msc-8tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16msc-8tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16msc-8tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16msc-8tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16msc-8tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16msc-8tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16msc-8tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16mst-8tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16mst-8tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16mst-8tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16mst-8tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16mst-8tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16mst-8tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-16mst-8tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-16mst-8tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20msc-4tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20msc-4tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20msc-4tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20msc-4tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20msc-4tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20msc-4tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20msc-4tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20msc-4tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20mst-4tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20mst-4tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20mst-4tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20mst-4tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20mst-4tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20mst-4tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-20mst-4tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-20mst-4tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8msc-16tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8msc-16tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8msc-16tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8msc-16tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8msc-16tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8msc-16tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8msc-16tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8msc-16tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8mst-16tx-4gsfp-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8mst-16tx-4gsfp-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8mst-16tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8mst-16tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8mst-16tx-4gsfp-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8mst-16tx-4gsfp-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8mst-16tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8mst-16tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8ssc-16tx-4gsfp-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8ssc-16tx-4gsfp-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7528-8ssc-16tx-4gsfp-wv-wv_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0 OR cpe:2.3:h:moxa:pt-7528-8ssc-16tx-4gsfp-wv-wv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-24_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-24:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-24-24_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-24-24:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-24-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-24-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-48_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-48:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-48-48_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-48-48:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-48-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-48-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-f-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-f-hv-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-24_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-24:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-24-24_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-24-24:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-24-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-24-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-48_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-48:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-48-48_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-48-48:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-48-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-48-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-hv:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:moxa:pt-7828-r-hv-hv_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.9 OR cpe:2.3:h:moxa:pt-7828-r-hv-hv:-:*:*:*:*:*:*:*
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-2020-6985 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-2020-6985 weaknesses.

Exploit Prediction

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

0.21 }} 0.00%

score

0.57479

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability