LAquis SCADA Web Server Hardcoded Credentials Authentication Bypass Vulnerability

January 19th, 2019
ZDI-19-067 ZDI-CAN-6677

CVE ID

CVE-2018-18998

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors

LAquis SCADA

Affected Products

Software

Vulnerability Details


This vulnerability allows remote attackers to bypass authentication on vulnerable installations of LAquis SCADA Software. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the processing of login requests to the product's webserver. The product contains a hard-coded password for a number of undocumented accounts. An attacker can leverage this vulnerability to bypass authentication on the system.

Additional Details

LAquis SCADA has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-19-015-01

Disclosure Timeline

  • 2018-08-14 - Vulnerability reported to vendor
  • 2019-01-19 - Coordinated public release of advisory
  • 2019-01-19 - Advisory Updated

Credit

Esteban Ruiz (mr_me) of Source Incite

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