icsa-19-036-03
Vulnerability from csaf_cisa
Published
2019-02-05 00:00
Modified
2019-09-19 00:00
Summary
WECON LeviStudioU (Update A)
Notes
CISA Disclaimer
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
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/.
Risk evaluation
Successful exploitation of these vulnerabilities could allow attackers to execute arbitrary code.
Critical infrastructure sectors
Critical Manufacturing, Energy, Water and Wastewater Systems
Countries/areas deployed
Worldwide
Company headquarters location
China
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
CISA recommends users take the following measures to protect themselves from social engineering attacks:
Recommended Practices
CISA also recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
Recommended Practices
CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
Recommended Practices
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Exploitability
No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.
{
"document": {
"acknowledgments": [
{
"names": [
"Mat Powell",
"Ziad Badawi",
"Natnael Samson"
],
"organization": "Trend Micro \u0027s Zero Day Initiative",
"summary": "reporting these vulnerabilities to NCCIC"
}
],
"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-US",
"notes": [
{
"category": "general",
"text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
"title": "CISA Disclaimer"
},
{
"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": "summary",
"text": "Successful exploitation of these vulnerabilities could allow attackers to execute arbitrary code.",
"title": "Risk evaluation"
},
{
"category": "other",
"text": "Critical Manufacturing, Energy, Water and Wastewater Systems",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "China",
"title": "Company headquarters location"
},
{
"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 recommends users take the following measures to protect themselves from social engineering attacks:",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
"title": "Recommended Practices"
},
{
"category": "other",
"text": "No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.",
"title": "Exploitability"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "ICS Advisory ICSA-19-036-03 JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-036-03.json"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-19-036-03 Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-036-03"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.us-cert.gov/ncas/tips/ST04-014"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-036-03"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
}
],
"title": "WECON LeviStudioU (Update A)",
"tracking": {
"current_release_date": "2019-09-19T00:00:00.000000Z",
"generator": {
"engine": {
"name": "CISA CSAF Generator",
"version": "1.0.0"
}
},
"id": "ICSA-19-036-03",
"initial_release_date": "2019-02-05T00:00:00.000000Z",
"revision_history": [
{
"date": "2019-02-05T00:00:00.000000Z",
"legacy_version": "Initial",
"number": "1",
"summary": "ICSA-19-036-03 WECON LeviStudioU"
},
{
"date": "2019-09-19T00:00:00.000000Z",
"legacy_version": "A",
"number": "2",
"summary": "ICSA-19-036-03 WECON LeviStudioU (Update A)"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c= 1.8.69",
"product": {
"name": "LeviStudioU: Versions 1.8.69 and prior",
"product_id": "CSAFPID-0001"
}
}
],
"category": "product_name",
"name": "LeviStudioU"
}
],
"category": "vendor",
"name": "WECON"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2019-6539",
"cwe": {
"id": "CWE-122",
"name": "Heap-based Buffer Overflow"
},
"notes": [
{
"category": "summary",
"text": "Several heap-based buffer overflow vulnerabilities have been identified, which may allow arbitrary code execution.CVE-2019-6539 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6539"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "WECON has produced Version 1.8.69 to fix the reported vulnerabilities in Version 1.8.56; however, exploits are still successful against this updated version. Future software updates will be made available ",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/download_45.html"
},
{
"category": "mitigation",
"details": "For more information contact WECON customer service: Phone: 0086-591-87868869-894 Website: http://www.we-con.com.cn/en/message.html",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/message.html"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2019-6537",
"cwe": {
"id": "CWE-121",
"name": "Stack-based Buffer Overflow"
},
"notes": [
{
"category": "summary",
"text": "Multiple stack-based buffer overflow vulnerabilities may be exploited when parsing strings within project files. The process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage these vulnerabilities to execute code under the context of the current process.CVE-2019-6537 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6537"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "WECON has produced Version 1.8.69 to fix the reported vulnerabilities in Version 1.8.56; however, exploits are still successful against this updated version. Future software updates will be made available ",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/download_45.html"
},
{
"category": "mitigation",
"details": "For more information contact WECON customer service: Phone: 0086-591-87868869-894 Website: http://www.we-con.com.cn/en/message.html",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/message.html"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2019-6541",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"notes": [
{
"category": "summary",
"text": "A memory corruption vulnerability has been identified, which may allow arbitrary code execution.CVE-2019-6541 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6541"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "WECON has produced Version 1.8.69 to fix the reported vulnerabilities in Version 1.8.56; however, exploits are still successful against this updated version. Future software updates will be made available ",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/download_45.html"
},
{
"category": "mitigation",
"details": "For more information contact WECON customer service: Phone: 0086-591-87868869-894 Website: http://www.we-con.com.cn/en/message.html",
"product_ids": [
"CSAFPID-0001"
],
"url": "http://www.we-con.com.cn/en/message.html"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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