CVE-2025-0432

Summary

EWON Flexy 202 transmits user credentials in clear text with no encryption when a user is added, or user credentials are changed via its webpage.

Affected Software

Weaknesses

• CWE-319: CWE-319 Cleartext Transmission of Sensitive Information

Workarounds

To ensure the highest level of security when using the Ewon Flexy device, HMS strongly recommend following these best practices:

• Integrate with Talk2M Cloud: Always use the Flexy device in conjunction with Talk2M cloud. This guarantees a robust security level for your remote access connections.
• Follow the the guidelines outlined here: Best Practices for Secure Usage of the Ewon Solution https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/ewon/manuals-and-guides---installation-guides/best-practices-for-a-secure-usage-of-the-ewon-solution-en.pdf
• Disable Unused Protocols: Regularly review and disable any unsecure protocols that are not in use. Learn how to do this here: How to Block Unused Ewon Services https://support.hms-networks.com/hc/en-us/articles/19393244940818-How-to-block-all-the-unused-Ewon-Flexy-Cosy131-services-on-the-LAN-WAN-and-or-VPN-interface

For further information, please visit the HMS Security Advisories https://www.hms-networks.com/cyber-security  page.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-25-023-06
• https://www.hms-networks.com/cyber-security
• https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/ewon/manuals-and-guides—installation-guides/best-practices-for-a-secure-usage-of-the-ewon-solution-en.pdf?sfvrsn=37160847_4
• https://support.hms-networks.com/hc/en-us/articles/19393244940818-How-to-block-all-the-unused-Ewon-Flexy-Cosy131-services-on-the-LAN-WAN-and-or-VPN-interface

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