ICSA-19-253-04
Vulnerability from csaf_cisa - Published: 2019-09-10 00:00 - Updated: 2019-09-10 00:00Summary
Siemens IE-WSN-PA Link WirelessHART Gateway
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 this vulnerability could allow information disclosure, code execution, or denial-of-service.
Critical infrastructure sectors: Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems
Countries/areas deployed: Worldwide
Company headquarters location: Germany
Recommended Practices: For more information, please see Siemens Security Advisory SSA-191683 at the following location:http://www.siemens.com/cert/advisories
CISA recommends users take the following measures to protect themselves from social engineering attacks:
Recommended Practices: CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
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.
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.
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and
solutions, please contact the Siemens ProductCERT:
https://www.siemens.com/cert/advisories
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Exploitability: No known public exploits specifically target this vulnerability. High skill level is needed to exploit.
CWE-79
- Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Vendor Fix
Only access links from trusted sources in the browser you use to
configure the IE/WSN-PA Link.
Vendor Fix
See recommendations from section Workaround and Mitigations
Mitigation
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
References
Acknowledgments
Siemens
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"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"
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{
"category": "summary",
"text": "Successful exploitation of this vulnerability could allow information disclosure, code execution, or denial-of-service.",
"title": "Risk evaluation"
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{
"category": "other",
"text": "Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems",
"title": "Critical infrastructure sectors"
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"text": "Worldwide",
"title": "Countries/areas deployed"
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"title": "Company headquarters location"
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{
"category": "general",
"text": "For more information, please see Siemens Security Advisory SSA-191683 at the following location:http://www.siemens.com/cert/advisories\nCISA recommends users take the following measures to protect themselves from social engineering attacks:",
"title": "Recommended Practices"
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{
"category": "general",
"text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage onus-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"
},
{
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"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.\nOrganizations 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"
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"text": "For further inquiries on security vulnerabilities in Siemens products and \nsolutions, please contact the Siemens ProductCERT:\n\nhttps://www.siemens.com/cert/advisories",
"title": "Additional Resources"
},
{
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"text": "No known public exploits specifically target this vulnerability. High skill level is needed to exploit.",
"title": "Exploitability"
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"contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
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"references": [
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"url": "https://www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B"
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{
"category": "external",
"summary": "SSA-496604: SSA-191683: Cross-Site Scripting Vulnerability in IE/WSN-PA Link WirelessHART Gateway - TXT Version",
"url": "https://cert-portal.siemens.com/productcert/txt/SSA-191683.txt"
}
],
"title": "Siemens IE-WSN-PA Link WirelessHART Gateway",
"tracking": {
"current_release_date": "2019-09-10T00:00:00.000000Z",
"generator": {
"engine": {
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"id": "ICSA-19-253-04",
"initial_release_date": "2019-09-10T00:00:00.000000Z",
"revision_history": [
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"date": "2019-09-10T00:00:00.000000Z",
"legacy_version": "Initial",
"number": "1",
"summary": "ICSA-19-253-04 Siemens IE-WSN-PA Link WirelessHART Gateway"
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"status": "final",
"version": "1"
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},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "All versions",
"product": {
"name": "IE/WSN-PA Link WirelessHART Gateway: All versions",
"product_id": "CSAFPID-0001"
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"vulnerabilities": [
{
"cve": "CVE-2019-13923",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"notes": [
{
"category": "summary",
"text": "The integrated configuration web server of the affected device could allow Cross-Site Scripting (XSS) attacks if unsuspecting users are tricked into accessing a malicious link.",
"title": "Summary"
},
{
"category": "summary",
"text": "User interaction is required for a successful exploitation. The user must be logged into the web interface in order for the exploitation to succeed. At the stage of publishing this security advisory no public exploitation is known.",
"title": "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-2019-13923"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "Only access links from trusted sources in the browser you use to\nconfigure the IE/WSN-PA Link.",
"product_ids": [
"CSAFPID-0001"
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},
{
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"details": "See recommendations from section Workaround and Mitigations ",
"product_ids": [
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},
{
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"details": "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: 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",
"product_ids": [
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}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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