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WellinTech KingHistorian

  1. EXECUTIVE SUMMARY CVSS v3 8.1 ATTENTION: Exploitable remotely/low attack complexity/public exploits are available Vendor: WellinTech Equipment: KingHistorian Vulnerabilities: Exposure of Sensitive Information to an Unauthorized Actor, Signed to Unsigned Conversion Error
  2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to disclose sensitive information or send malicious data which can lead to a buffer overflow.
  3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of WellinTech KingHistorian, a time-series database, are affected:

KingHistorian: version 35.01.00.05 3.2 VULNERABILITY OVERVIEW 3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200 An information disclosure vulnerability exists in the User authentication functionality of WellinTech KingHistorian 35.01.00.05. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can sniff network traffic to leverage this vulnerability. CVE-2022-45124 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). 3.2.2 SIGNED TO UNSIGNED CONVERSION ERROR CWE-195 An integer conversion vulnerability exists in the SORBAx64.dll RecvPacket functionality of WellinTech KingHistorian 35.01.00.05. A specially crafted network packet can lead to a buffer overflow. An attacker can send a malicious packet to trigger this vulnerability. CVE-2022-43663 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: China 3.4 RESEARCHER Carl Hurd of Cisco Talos reported this vulnerability to Talos Intelligence.

  1. MITIGATIONS WellinTech has released KingHistorian V3.52 to remediate these vulnerabilities. CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
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#vulnerability#web#cisco#intel#buffer_overflow#auth

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