ICSA-23-103-09
Vulnerability from csaf_cisa
Published
2023-04-11 00:00
Modified
2025-05-06 06:00
Summary
Siemens SCALANCE XCM332
Notes
Summary
Multiple vulnerabilities in the third-party components cURL, BusyBox, libtirpc, Expat as well as in the Linux Kernel could allow an attacker to impact the SCALANCE XCM332 device's confidentiality, integrity and availability.
Siemens has released an update for the SCALANCE XCM332 and recommends to update to the latest version.
General Recommendations
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:
https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
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.
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/.
Advisory Conversion Disclaimer
This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.
Critical infrastructure sectors
Multiple
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
Recommended Practices
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.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
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.
Recommended Practices
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.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
{ "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": "Multiple vulnerabilities in the third-party components cURL, BusyBox, libtirpc, Expat as well as in the Linux Kernel could allow an attacker to impact the SCALANCE XCM332 device\u0027s confidentiality, integrity and availability.\n\nSiemens has released an update for the SCALANCE XCM332 and recommends to update to the latest version.", "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\u0027 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\u0027 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\u0027 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\u0027s 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-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-558014.json" }, { "category": "self", "summary": "SSA-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 - HTML Version", "url": "https://cert-portal.siemens.com/productcert/html/ssa-558014.html" }, { "category": "self", "summary": "SSA-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 - PDF Version", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-558014.pdf" }, { "category": "self", "summary": "SSA-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/ssa-558014.txt" }, { "category": "self", "summary": "ICS Advisory ICSA-23-103-09 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-103-09.json" }, { "category": "self", "summary": "ICS Advisory ICSA-23-103-09 - Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-103-09" }, { "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 SCALANCE XCM332", "tracking": { "current_release_date": "2025-05-06T06:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-23-103-09", "initial_release_date": "2023-04-11T00:00:00.000000Z", "revision_history": [ { "date": "2023-04-11T00:00:00.000000Z", "legacy_version": "1.0", "number": "1", "summary": "Publication Date" }, { "date": "2025-05-06T06:00:00.000000Z", "legacy_version": "Revision", "number": "2", "summary": "Revision - Fixing typos" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "\u003cV2.2", "product": { "name": "SCALANCE XCM332 (6GK5332-0GA01-2AC2)", "product_id": "CSAFPID-0001", "product_identification_helper": { "model_numbers": [ "6GK5332-0GA01-2AC2" ] } } } ], "category": "product_name", "name": "SCALANCE XCM332 (6GK5332-0GA01-2AC2)" } ], "category": "vendor", "name": "Siemens" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-46828", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "summary", "text": "In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2021-46828" }, { "cve": "CVE-2022-1652", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "summary", "text": "Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-1652" }, { "cve": "CVE-2022-1729", "cwe": { "id": "CWE-362", "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)" }, "notes": [ { "category": "summary", "text": "A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 7.0, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-1729" }, { "cve": "CVE-2022-30065", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "summary", "text": "A use-after-free in Busybox 1.35-x\u0027s awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the copyvar function.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-30065" }, { "cve": "CVE-2022-32205", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "summary", "text": "A malicious server can serve excessive amounts of \"Set-Cookie:\" headers in a HTTP response to curl and curl \u003c 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.This denial state might remain for as long as the same cookies are kept, match and haven\u0027t expired. Due to cookie matching rules, a server on \"foo.example.com\" can set cookies that also would match for \"bar.example.com\", making it it possible for a \"sister server\" to effectively cause a denial of service for a sibling site on the same second level domain using this method.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 4.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-32205" }, { "cve": "CVE-2022-32206", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "summary", "text": "curl \u003c 7.84.0 supports \"chained\" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable \"links\" in this \"decompression chain\" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a \"malloc bomb\", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 6.5, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-32206" }, { "cve": "CVE-2022-32207", "cwe": { "id": "CWE-276", "name": "Incorrect Default Permissions" }, "notes": [ { "category": "summary", "text": "When curl \u003c 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accidentally *widen* the permissions for the target file, leaving the updated file accessible to more users than intended.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-32207" }, { "cve": "CVE-2022-32208", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "notes": [ { "category": "summary", "text": "When curl \u003c 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly. This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject data to the client.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 5.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-32208" }, { "cve": "CVE-2022-35252", "cwe": { "id": "CWE-1286", "name": "Improper Validation of Syntactic Correctness of Input" }, "notes": [ { "category": "summary", "text": "When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses. Effectively allowing a\"sister site\" to deny service to all siblings.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-35252" }, { "cve": "CVE-2022-40674", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "summary", "text": "libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "remediations": [ { "category": "vendor_fix", "details": "Update to V2.2 or later version", "product_ids": [ "CSAFPID-0001" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109817513/" } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ], "title": "CVE-2022-40674" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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