ABB MicroSCADA Improper Access Control Privilege Escalation Vulnerability ID ZDI: ZDI-18-141 ZDI-CAN: ZDI-CAN-5097 CVE ID: CVE-2018-1168 CVSS Score: 6.0, AV:L/AC:H/Au:S/C:C/I:C/A:C Affected Vendors: ABB Affected Products: MicroSCADA Vulnerability Details This vulnerability allows local attackers to escalate privileges on vulnerable installations of ABB MicroSCADA. An attacker must first obtain the ability to execute low-privileged code on the target system to exploit the vulnerability. The vulnerability exists in the configuration of the access controls for the installed product files. The installation procedure leaves critical files open to manipulation by any authenticated user, allowing an attacker to escalate privileges to SYSTEM. Additional Details ABB has issued an update to correct this vulnerability. More details can be found at: https://library.e.abb.com/public/7a88a74b12bb492ea138b1f2365d00f6/ABBVU-PGGA-33888_ABB_SoftwareVulnerabilityHandlingAdvisory_Rev_A.pdf?xsign=MJfu9cHtRUUnpLAYzyWFTmW5W+mg3kZ/nm7F/jw5HlFTQf4eNylLAyeE8HozRJEC Disclosure Timeline 2017-08-18: Vulnerability reported to vendor 2018-02-06: Coordinated public release of advisory 2018-02-07: Advisory updated Credit: Fritz Sands - Trend Micro Zero Day Initiative