This vulnerability is not exploitable remotely.įor any questions related to this report, please contact the CISA at:įor industrial control systems cybersecurity information: ĬISA continuously strives to improve its products and services.

No known public exploits specifically target this vulnerability. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.Do not click web links or open unsolicited attachments in email messages.Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.ĬISA also recommends users take the following measures to protect themselves from social engineering attacks: Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.Īdditional mitigation guidance and recommended practices are publicly available on the ICS webpage on in the Technical Information Paper, ICS-TIP-12-146-01B-Targeted Cyber Intrusion Detection and Mitigation Strategies. PTC recommends users upgrade to Version 3.0.99ĬISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability.ĬISA also provides a section for control systems security recommended practices on the ICS webpage on. Yuri Kramarz of Cisco Talos reported this vulnerability to PTC. COMPANY HEADQUARTERS LOCATION: United States.CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing.A CVSS v3 base score of 9.3 has been calculated the CVSS vector string is ( AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H). The affected product has incorrect default permissions, which may grant an attacker access to reconfigure the service in any manner.ĬVE-2020-13535 has been assigned to this vulnerability. Kepware LinkMaster Version 3.0.94.0 and priorģ.2 VULNERABILITY OVERVIEW 3.2.1 INCORRECT DEFAULT PERMISSIONS CWE-276.The following versions of PTC Kepware LinkMaster, a Windows application linking data between OPC servers, are affected: Successful exploitation of this vulnerability could allow a local attacker to globally overwrite the service configuration to execute arbitrary code with NT SYSTEM privileges. Vulnerability: Incorrect Default Permissions.