Advisory Details

February 6th, 2018

ABB MicroSCADA Improper Access Control Privilege Escalation Vulnerability

ZDI-18-141
ZDI-CAN-5097

CVE ID CVE-2018-1168
CVSS SCORE 6, (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 in order to exploit this vulnerability.

The specific flaw exists within the configuration of the access controls for the installed product files. The installation procedure leaves critical files open to manipulation by any authenticated user. An attacker can leverage this vulnerability 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?x-sign=MJfu9cHtRUUubpLAYzyWFTmW5W+mg3kZ/nm7F/Jw5HlFTQf4eNyfLAgE8HozRJEC
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
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