{"containers": {"cna": {"affected": [{"product": "PcVue", "vendor": "ARC Informatique", "versions": [{"lessThanOrEqual": "12.0.17", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Sergey Temnikov and Andrey Muravitsky of Kaspersky Lab reported these vulnerabilities to ARC Informatique."}], "datePublic": "2020-11-03T00:00:00", "descriptions": [{"lang": "en", "value": "ARC Informatique PcVue prior to version 12.0.17 is vulnerable to a denial-of-service attack due to the ability of an unauthorized user to modify information used to validate messages sent by legitimate web clients. This issue also affects third-party systems based on the Web Services Toolkit."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-767", "description": "CWE-767: Access to Critical Private Variable via Public Method", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-01-11T15:15:29", "orgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988", "shortName": "Kaspersky"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.pcvuesolutions.com/security"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-016-denial-of-service-in-arc-informatique-pcvue/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1"}], "solutions": [{"lang": "en", "value": "ARC Informatique recommends upgrading PcVue to v12.0.17. Contact PcVue Support to receive instructions on downloading and installing the latest software version."}], "source": {"advisory": "ICSA-20-308-03", "discovery": "UNKNOWN"}, "title": "ARC Informatique PcVue Access to Critical Private Variable via Public Method", "workarounds": [{"lang": "en", "value": "The following mitigations and workarounds have been identified by ARC Informatique to help reduce risk:\n\nUninstall the web and mobile backend. Users not using the affected components should uninstall them. If the components are not required, do not install them.\nChange default configuration if using components prior to v12.0. If taking advantage of the web and mobile back features with a product version up to v11.2, change the following configuration item manually to prevent remote code execution\nIn the file <PcVue installation directory>\\Bin\\PropertyServer.config>, change the following element and set it to \u201cLow\u201d (defaults to \u201cFull\u201d):\n <serverProviders>\n <formatter ref=\u201dbinary\u201d typeFilterLevel=\u201dLow\u201d />\n </serverProviders>\n\n \nThis workaround cannot be applied to PcVue v12.0\nHarden firewall configuration by ensuring that incoming connections on the corresponding port are authorized only if initiated by the IIS Web Server process. 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If taking advantage of the web and mobile back features with a product version up to v11.2, change the following configuration item manually to prevent remote code execution\nIn the file <PcVue installation directory>\\Bin\\PropertyServer.config>, change the following element and set it to \u201cLow\u201d (defaults to \u201cFull\u201d):\n <serverProviders>\n <formatter ref=\u201dbinary\u201d typeFilterLevel=\u201dLow\u201d />\n </serverProviders>\n\n \nThis workaround cannot be applied to PcVue v12.0\nHarden firewall configuration by ensuring that incoming connections on the corresponding port are authorized only if initiated by the IIS Web Server process. 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