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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.6636.2 Advisory (icsa-22-354-03) ARC Informatique PcVue 10 February 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ARC Informatique PcVue Publisher: ICS-CERT Operating System: Network Appliance Resolution: Patch/Upgrade CVE Names: CVE-2022-4312 CVE-2022-4311 Original Bulletin: https://us-cert.cisa.gov/ics/advisories/icsa-22-354-03 Revision History: February 10 2023: Vendor released new releases December 21 2022: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-22-354-03) ARC Informatique PcVue Original release date: December 20, 2022 Legal Notice All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/ . 1. EXECUTIVE SUMMARY o CVSS v3 5.5 o ATTENTION: Low attack complexity o Vendor: ARC Informatique o Equipment: PcVue o Vulnerabilities: Cleartext Storage of Sensitive Information, Insertion of Sensitive Information into Log File 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an unauthorized user to access the email account, SIM card, and other data sources associated with the affected device. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of PcVue-a supervisory control and data acquisition (SCADA) monitoring and control software-are affected: o PcVue Versions 15 through 15.2.2 (CVE-2022-3411 only) o PcVue Versions 8.10 through 15.2.3 (CVE-2022-3412 only) 3.2 VULNERABILITY OVERVIEW 3.2.1 CLEARTEXT STORAGE OF SENSITIVE INFORMATION CWE-312 A cleartext storage of sensitive information vulnerability exists in PcVue versions 8.10 through 15.2.3. This could allow an unauthorized user to access the email and short messaging service (SMS) accounts configuration files to discover the associated simple mail transfer protocol (SMTP) account credentials and the SIM card PIN code. Successful exploitation of this vulnerability could allow an unauthorized user access to the underlying email account and SIM card. CVE-2022-4312 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:L/UI:N/S:U/ C:H/I:N/A:N ). 3.2.2 INSERTION OF SENSITIVE INFORMATION INTO LOG FILE CWE-532 An insertion of sensitive information into log file vulnerability exists in PcVue versions 15 through 15.2.2. This could allow a user with access to the log files to discover connection strings of data sources configured for the DbConnect, which could include credentials. Successful exploitation of this vulnerability could allow other users unauthorized access to the underlying data sources. CVE-2022-4311 has been assigned to this vulnerability. A CVSS v3 base score of 4.7 has been calculated; the CVSS vector string is ( AV:L/AC:H/PR:L/UI:N/S:U/ C:H/I:N/A:N ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Transportation, Water and Wastewater, Energy, Critical Manufacturing, Food and Agriculture o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: France 3.4 RESEARCHER ARC Informatique reported these vulnerabilities to CISA. 4. MITIGATIONS ARC Informatique recommends users install the latest version of PcVue. Users should contact ARC Informatique to request the latest update files. For additional information and mitigation recommendations, see ARC Informatique's security bulletins for these vulnerabilities (login required): o CVE-2022-4311: SB2022-6 o CVE-2022-4312: SB2022-7 ARC Informatique recommends users take steps to harden system configurations. CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: o Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet . o Locate control system networks and remote devices behind firewalls and isolate them from business networks. o 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. o Exercise principles of least privilege. 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. No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely. For any questions related to this report, please contact the CISA at: Email: CISAservicedesk@cisa.dhs.gov Toll Free: 1-888-282-0870 CISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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