Advisory Details

July 7th, 2020

C-MORE HMI EA9 Weak Cryptography for Passwords Information Disclosure Vulnerability

ZDI-20-806
ZDI-CAN-10185

CVE ID CVE-2020-10919
CVSS SCORE 5.9, (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
AFFECTED VENDORS C-MORE
AFFECTED PRODUCTS HMI EA9
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of C-More HMI EA9 touch screen panels. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of passwords. When transmitting passwords, the process encrypts them in a recoverable format using a hard-coded key. An attacker can leverage this vulnerability to disclose credentials, leading to further compromise.

ADDITIONAL DETAILS

Fixed in version 6.60


DISCLOSURE TIMELINE
  • 2020-02-10 - Vulnerability reported to vendor
  • 2020-07-07 - Coordinated public release of advisory
  • 2020-07-08 - Advisory Updated
CREDIT Ta-Lun Yen & Chizuru Toyama of TXOne IoT/ICS Security Research Labs (Trend Micro)
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