CVE-2026-24934
Insecure DDNS HTTP/SSL Validation Enables MitM Attack in ADM
Publication date: 2026-02-03
Last updated on: 2026-02-19
Assigner: ASUSTOR, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| asustor | data_master | From 4.1.0.rhu2 (inc) to 4.3.3.rof1 (inc) |
| asustor | data_master | From 5.0.0.ra82 (inc) to 5.1.2.re51 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-295 | The product does not validate, or incorrectly validates, a certificate. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs because the DDNS function uses an insecure HTTP connection or does not properly validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. This allows an unauthenticated remote attacker to perform a Man-in-the-Middle (MitM) attack and spoof the response, causing the device to update its DDNS record with an incorrect IP address.
How can this vulnerability impact me? :
The vulnerability can lead to the device updating its DDNS record with an incorrect IP address due to a spoofed response from a Man-in-the-Middle attack. This can disrupt network services relying on accurate DDNS records, potentially causing loss of connectivity or redirecting traffic to malicious locations.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know