Home/CVE/In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the serv
CVE

CVE-2021-36767

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the serv

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password.

The attacker may then crack this hash offline in order to successfully login to the server.

CRITICAL · CVSS 9.8 EPSS 0.00356
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

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 NVD08 Oct 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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