PT-2021-21094 · Digi · Digi Transport Dr64+2

Published 2021-12-10 · Updated 2021-12-14 · CVE-2021-35978

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Digi TransPort DR64 (affected versions not specified) Digi TransPort SR44 VC74 (affected versions not specified) Digi TransPort WR (affected versions not specified)

Description: An issue was discovered in the ZING protocol, allowing arbitrary remote command execution with SUPER privileges. This enables an attacker, with knowledge of the protocol, to execute arbitrary code on the controller, including overwriting firmware, adding or removing users, and disabling the internal firewall.

Recommendations: For Digi TransPort DR64, consider disabling the ZING protocol until a patch is available. For Digi TransPort SR44 VC74, restrict access to the controller to minimize the risk of exploitation. For Digi TransPort WR, avoid using the ZING protocol for remote command execution until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2021-35978

Affected Products

Digi Transport Dr64

Digi Transport Sr44 Vc74

Digi Transport Wr

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-35978 · Security Note
• https://osv.dev/vulnerability/CVE-2021-35978 · Vendor Advisory
• https://digi.com · Vendor Advisory
• https://t.me/cibsecurity/33736 · Telegram Post
• https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txt · Note
• https://t.me/cvenotify/24520 · Telegram Post