![]() Locate control system networks and remote devices behind firewalls, and isolate them from the business network.Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet.ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. The latest version can be found on the Unitronics web site at the following location: Unitronics recommends that users upgrade to Visilogic Version 9.8.30 or later to mitigate this vulnerability. DIFFICULTYĪn attacker with a low skill would be able to exploit this vulnerability. No known public exploits specifically target this vulnerability. This vulnerability could be exploited remotely. A CVSS v3 base score of 7.3 has been calculated the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).CVSS Calculator,, web site last accessed June 23, 2016. This web site will be active sometime after publication of this advisory. The failure is caused by an attempt to copy into a fixed-length stack buffer without validating its length.ĬVE-2016-4519NVD,, NIST uses this advisory to create the CVE web site report. STACK-BASED BUFFER OVERFLOWCWE-121: Stack-based Buffer Overflow,, web site last accessed June 23, 2016. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW According to Unitronics, this product is used worldwide in multiple sectors. ![]() The affected product, Unitronics VisiLogic OPLC IDE, is an HMI and PLC application programming environment for Vision and SAMBA series controllers. Unitronics has offices in the United States and Israel. NCCIC/ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. Impact to individual organizations depends on many factors that are unique to each organization. Unitronics reports that the vulnerability affects the following versions of VisiLogic:īy exploiting this vulnerability, an attacker may be able to remotely execute arbitrary code. Unitronics has produced a new version to mitigate this vulnerability. ZDI has identified a buffer overflow vulnerability discovered by Steven Seeley of Source Incite in Unitronics VisiLogic.
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