9.8
CRITICAL
CVE-2021-35978
Digi TransPort Remote Command Execution Vulnerability
Description

An issue was discovered in Digi TransPort DR64, SR44 VC74, and WR. The ZING protocol allows arbitrary remote command execution with SUPER privileges. This allows an attacker (with knowledge of the protocol) to execute arbitrary code on the controller including overwriting firmware, adding/removing users, disabling the internal firewall, etc.

INFO

Published Date :

Dec. 10, 2021, 1:15 p.m.

Last Modified :

Dec. 14, 2021, 5 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-35978 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 Digi transport_wr11_xt_firmware
2 Digi transport_wr21_firmware
3 Digi transport_wr44_firmware
4 Digi transport_dr64_firmware
5 Digi transport_sr44_firmware
6 Digi transport_vc74_firmware
7 Digi transport_wr11_firmware
8 Digi transport_wr31_firmware
9 Digi transport_wr41_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-2021-35978.

URL Resource
https://digi.com Vendor Advisory
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txt 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-2021-35978 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-35978 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]

    Dec. 14, 2021

    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://digi.com No Types Assigned https://digi.com Vendor Advisory
    Changed Reference Type https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txt No Types Assigned https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txt Third Party Advisory
    Added CWE NIST CWE-77
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_dr64_firmware:*:*:*:*:*:*:*:* versions up to (including) 5.2.4.9 OR cpe:2.3:h:digi:transport_dr64:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_sr44_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:digi:transport_sr44:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_vc74_firmware:*:*:*:*:*:*:*:* versions up to (including) 5.2.4.9 OR cpe:2.3:h:digi:transport_vc74:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr11_firmware:*:*:*:*:*:*:*:* versions up to (including) 8.2.1.3 OR cpe:2.3:h:digi:transport_wr11:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr11_xt_firmware:*:*:*:*:*:*:*:* versions up to (including) 8.2.1.3 OR cpe:2.3:h:digi:transport_wr11_xt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr21_firmware:*:*:*:*:*:*:*:* versions up to (including) 8.2.1.3 OR cpe:2.3:h:digi:transport_wr21:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr31_firmware:*:*:*:*:*:*:*:* versions up to (including) 8.2.1.3 OR cpe:2.3:h:digi:transport_wr31:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr41_firmware:*:*:*:*:*:*:*:* versions from (including) 5.0.0.0 up to (including) 5.2.4.6 *cpe:2.3:o:digi:transport_wr41_firmware:*:*:*:*:*:*:*:* versions from (including) 6.0.0.0 up to (including) 6.1.3.5 *cpe:2.3:o:digi:transport_wr41_firmware:*:*:*:*:*:*:*:* versions from (including) 8.0.0.0 up to (including) 8.3.1.2 OR cpe:2.3:h:digi:transport_wr41:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:digi:transport_wr44_firmware:*:*:*:*:*:*:*:* versions up to (including) 8.3.1.2 OR cpe:2.3:h:digi:transport_wr44:v2:*:*:*:*:*:*:*
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-2021-35978 is associated with the following CWEs:

Exploit Prediction

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

0.52 }} 0.00%

score

0.77181

percentile

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