Home/CVE/An issue was discovered in Digi TransPort DR64, SR44 VC74, and WR. The ZING protocol allows arbitrary remote command exe
CVE

CVE-2021-35978

An issue was discovered in Digi TransPort DR64, SR44 VC74, and WR. The ZING protocol allows arbitrary remote command exe

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.

CRITICAL · CVSS 9.8 EPSS 0.08068
Schedule remediation
  • EPSS percentile: top 8% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
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Affected Products & Versions

11
digi transport dr64 firmware<= 5.2.4.9
digi transport sr44 firmwareall versions
digi transport vc74 firmware<= 5.2.4.9
digi transport wr11 firmware<= 8.2.1.3
digi transport wr11 xt firmware<= 8.2.1.3
digi transport wr21 firmware<= 8.2.1.3
digi transport wr31 firmware<= 8.2.1.3
digi transport wr41 firmware>= 5.0.0.0 and <= 5.2.4.6
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Dec 2021 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://digi.comVendor Advisory
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-04.txtThird Party Advisory
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