{
"document": {
"acknowledgments": [
{
"organization": "Siemens ProductCERT",
"summary": "reporting these vulnerabilities to CISA."
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Disclosure is not limited",
"tlp": {
"label": "WHITE",
"url": "https://us-cert.cisa.gov/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "Two null point dereference vulnerabilities affect multiple SIMATIC software products. These could allow an attacker to cause a persistent denial of service condition in the RPC Server of these products.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
"title": "Summary"
},
{
"category": "general",
"text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
"title": "General Recommendations"
},
{
"category": "general",
"text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
"title": "Terms of Use"
},
{
"category": "legal_disclaimer",
"text": "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/.",
"title": "Legal Notice"
},
{
"category": "other",
"text": "This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.",
"title": "Advisory Conversion Disclaimer"
},
{
"category": "other",
"text": "Multiple",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "Germany",
"title": "Company headquarters location"
},
{
"category": "general",
"text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. 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.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
}
],
"publisher": {
"category": "other",
"contact_details": "central@cisa.dhs.gov",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - CSAF Version",
"url": "https://cert-portal.siemens.com/productcert/csaf/ssa-753746.json"
},
{
"category": "self",
"summary": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - HTML Version",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-753746.html"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-24-046-12 JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-046-12.json"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-24-046-12 - Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-046-12"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/topics/industrial-control-systems"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
}
],
"title": "Siemens SIMATIC WinCC, OpenPCS",
"tracking": {
"current_release_date": "2024-09-10T00:00:00.000000Z",
"generator": {
"engine": {
"name": "CISA CSAF Generator",
"version": "1.0.0"
}
},
"id": "ICSA-24-046-12",
"initial_release_date": "2024-02-13T00:00:00.000000Z",
"revision_history": [
{
"date": "2024-02-13T00:00:00.000000Z",
"legacy_version": "1.0",
"number": "1",
"summary": "Publication Date"
},
{
"date": "2024-04-09T00:00:00.000000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Added a mitigation"
},
{
"date": "2024-06-11T00:00:00.000000Z",
"legacy_version": "1.2",
"number": "3",
"summary": "Added fix for SIMATIC WinCC Runtime Professional V19 and corrected fix version of WinCC V8.0 from SP4 to Update4"
},
{
"date": "2024-07-09T00:00:00.000000Z",
"legacy_version": "1.3",
"number": "4",
"summary": "Added fix for SIMATIC WinCC Runtime Professional V18"
},
{
"date": "2024-09-10T00:00:00.000000Z",
"legacy_version": "1.4",
"number": "5",
"summary": "Added fix for SIMATIC PCS 7 V9.1, SIMATIC BATCH V9.1, OpenPCS 7 and SIMATIC Route Control V9.1"
}
],
"status": "final",
"version": "5"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "<V9.1_SP2_UC05",
"product": {
"name": "OpenPCS 7 V9.1",
"product_id": "CSAFPID-0001"
}
}
],
"category": "product_name",
"name": "OpenPCS 7 V9.1"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V9.1_SP2_UC05",
"product": {
"name": "SIMATIC BATCH V9.1",
"product_id": "CSAFPID-0002"
}
}
],
"category": "product_name",
"name": "SIMATIC BATCH V9.1"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V9.1_SP2_UC05",
"product": {
"name": "SIMATIC PCS 7 V9.1",
"product_id": "CSAFPID-0003"
}
}
],
"category": "product_name",
"name": "SIMATIC PCS 7 V9.1"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V9.1_SP2_UC05",
"product": {
"name": "SIMATIC Route Control V9.1",
"product_id": "CSAFPID-0004"
}
}
],
"category": "product_name",
"name": "SIMATIC Route Control V9.1"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V18_Update_4",
"product": {
"name": "SIMATIC WinCC Runtime Professional V18",
"product_id": "CSAFPID-0005"
}
}
],
"category": "product_name",
"name": "SIMATIC WinCC Runtime Professional V18"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V19_Update_2",
"product": {
"name": "SIMATIC WinCC Runtime Professional V19",
"product_id": "CSAFPID-0006"
}
}
],
"category": "product_name",
"name": "SIMATIC WinCC Runtime Professional V19"
},
{
"branches": [
{
"category": "product_version_range",
"name": "vers:all/*",
"product": {
"name": "SIMATIC WinCC V7.4",
"product_id": "CSAFPID-0007"
}
}
],
"category": "product_name",
"name": "SIMATIC WinCC V7.4"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V7.5_SP2_Update_15",
"product": {
"name": "SIMATIC WinCC V7.5",
"product_id": "CSAFPID-0008"
}
}
],
"category": "product_name",
"name": "SIMATIC WinCC V7.5"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<V8.0_Update_4",
"product": {
"name": "SIMATIC WinCC V8.0",
"product_id": "CSAFPID-0009"
}
}
],
"category": "product_name",
"name": "SIMATIC WinCC V8.0"
}
],
"category": "vendor",
"name": "Siemens"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2023-48363",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"notes": [
{
"category": "summary",
"text": "The implementation of the RPC (Remote Procedure call) \r\ncommunication protocol in the affected products do not \r\nproperly handle certain unorganized RPC messages. An \r\nattacker could use this vulnerability to cause a denial of service \r\ncondition in the RPC server.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
},
"remediations": [
{
"category": "no_fix_planned",
"details": "Currently no fix is planned",
"product_ids": [
"CSAFPID-0007"
]
},
{
"category": "vendor_fix",
"details": "Update to V18 Update 4 or later version",
"product_ids": [
"CSAFPID-0005"
]
},
{
"category": "vendor_fix",
"details": "Update to V19 Update 2 or later version",
"product_ids": [
"CSAFPID-0006"
]
},
{
"category": "vendor_fix",
"details": "Update to V7.5 SP2 Update 15 or later version",
"product_ids": [
"CSAFPID-0008"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
},
{
"category": "vendor_fix",
"details": "Update to V8.0 Update 4 or later version",
"product_ids": [
"CSAFPID-0009"
]
},
{
"category": "vendor_fix",
"details": "Update to V9.1 SP2 UC05 or later version",
"product_ids": [
"CSAFPID-0003"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109812242/"
},
{
"category": "vendor_fix",
"details": "See remediation for SIMATIC PCS 7 V9.1",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0004"
]
},
{
"category": "workaround",
"details": "Ensure that SIMATIC WinCC, SIMATIC WinCC Runtime Professional and SIMATIC PCS 7 stations communicate via encrypted channels (i.e. activate feature \u201cEncrypted Communication\u201d in SIMATIC WinCC and SIMATIC PCS 7). Enabling \u201cEncrypted Communication\u201d completely mitigates the vulnerability",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
}
],
"title": "CVE-2023-48363"
},
{
"cve": "CVE-2023-48364",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"notes": [
{
"category": "summary",
"text": "The implementation of the RPC (Remote Procedure call) communication protocol in the affected products do not properly handle certain malformed RPC messages. An attacker could use this vulnerability to cause a denial of service condition in the RPC server.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
},
"remediations": [
{
"category": "no_fix_planned",
"details": "Currently no fix is planned",
"product_ids": [
"CSAFPID-0007"
]
},
{
"category": "vendor_fix",
"details": "Update to V18 Update 4 or later version",
"product_ids": [
"CSAFPID-0005"
]
},
{
"category": "vendor_fix",
"details": "Update to V19 Update 2 or later version",
"product_ids": [
"CSAFPID-0006"
]
},
{
"category": "vendor_fix",
"details": "Update to V7.5 SP2 Update 15 or later version",
"product_ids": [
"CSAFPID-0008"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
},
{
"category": "vendor_fix",
"details": "Update to V8.0 Update 4 or later version",
"product_ids": [
"CSAFPID-0009"
]
},
{
"category": "vendor_fix",
"details": "Update to V9.1 SP2 UC05 or later version",
"product_ids": [
"CSAFPID-0003"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109812242/"
},
{
"category": "vendor_fix",
"details": "See remediation for SIMATIC PCS 7 V9.1",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0004"
]
},
{
"category": "workaround",
"details": "Ensure that SIMATIC WinCC, SIMATIC WinCC Runtime Professional and SIMATIC PCS 7 stations communicate via encrypted channels (i.e. activate feature \u201cEncrypted Communication\u201d in SIMATIC WinCC and SIMATIC PCS 7). Enabling \u201cEncrypted Communication\u201d completely mitigates the vulnerability",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009"
]
}
],
"title": "CVE-2023-48364"
}
]
}