This updated advisory is a follow-up to the original advisory titled ICSA-22-354-03 ARC Informatique PcVue that was published December 20, 2022. It is possible for an unauthorized user to access the email account, SIM card, and other data sources associated with the affected device due to a cleartext storage of sensitive information vulnerability existing in PcVue versions 8.10 through 15.2.3. This could allow the user to discover the associated simple mail transfer protocol account credentials and the SIM card PIN code. Additionally, an insertion of sensitive information into log file vulnerability exists in PcVue versions 15 through 15.2.2, which 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. ARC Informatique reported these vulnerabilities to CISA and has released a fix for CVE-2022-4312 for PcVue 12 in Version 12.0.28. CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as minimizing network exposure for all control system devices and/or systems, and ensuring they are not accessible from the Internet. CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. No known public exploits specifically target these vulnerabilities.
This Cyber News was published on us-cert.cisa.gov. Publication date: Thu, 09 Feb 2023 17:49:02 +0000