Advisory Details

January 19th, 2019

LAquis SCADA LGX Report AddComboFile Arbitrary File Creation Vulnerability

ZDI-19-091
ZDI-CAN-6628

CVE ID CVE-2018-18988
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 execute arbitrary code on vulnerable installations of LAquis SCADA Software. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of LGX report files. Script embedded in a crafted file can create files in arbitrary locations using the AddComboFile method. An attacker can leverage this vulnerability to execute code in the context of the current user.

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
  • 2018-09-11 - 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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