ICSA-23-103-06
Vulnerability from csaf_cisa
Published
2023-04-14 20:06
Modified
2023-04-14 20:06
Summary
Siemens SIPROTEC 5 Devices
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 cause a denial-of-service condition of the target device.
Critical infrastructure sectors
Multiple Sectors
Countries/areas deployed
Worldwide
Company headquarters location
Germany
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 at cisa.gov/ics. 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
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics 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.
Recommended Practices
No known public exploits specifically target this vulnerability.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
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"vulnerabilities": [
{
"cve": "CVE-2023-28766",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"notes": [
{
"category": "summary",
"text": "Affected devices lack proper validation of http request parameters of the hosted web service.\r\nAn unauthenticated remote attacker could send specially crafted packets that could cause denial of service condition of the target device.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009",
"CSAFPID-00010",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00014",
"CSAFPID-00015",
"CSAFPID-00016",
"CSAFPID-00017",
"CSAFPID-00018",
"CSAFPID-00019",
"CSAFPID-00020",
"CSAFPID-00021",
"CSAFPID-00022",
"CSAFPID-00023",
"CSAFPID-00024",
"CSAFPID-00025",
"CSAFPID-00026",
"CSAFPID-00027",
"CSAFPID-00028",
"CSAFPID-00029",
"CSAFPID-00030",
"CSAFPID-00031",
"CSAFPID-00032",
"CSAFPID-00033",
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036",
"CSAFPID-00037",
"CSAFPID-00038",
"CSAFPID-00039",
"CSAFPID-00040",
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043",
"CSAFPID-00044"
]
},
"references": [
{
"category": "external",
"summary": "nvd.nist.gov",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28766"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Block access to port 4443/tcp e.g. with an external firewall",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009",
"CSAFPID-00010",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00014",
"CSAFPID-00015",
"CSAFPID-00016",
"CSAFPID-00017",
"CSAFPID-00018",
"CSAFPID-00019",
"CSAFPID-00020",
"CSAFPID-00021",
"CSAFPID-00022",
"CSAFPID-00023",
"CSAFPID-00024",
"CSAFPID-00025",
"CSAFPID-00026",
"CSAFPID-00027",
"CSAFPID-00028",
"CSAFPID-00029",
"CSAFPID-00030",
"CSAFPID-00031",
"CSAFPID-00032",
"CSAFPID-00033",
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036",
"CSAFPID-00037",
"CSAFPID-00038",
"CSAFPID-00039",
"CSAFPID-00040",
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043",
"CSAFPID-00044"
]
},
{
"category": "mitigation",
"details": "Disable web service using port 4443 for SIPROTEC 5 if it is not needed",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009",
"CSAFPID-00010",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00014",
"CSAFPID-00015",
"CSAFPID-00016",
"CSAFPID-00017",
"CSAFPID-00018",
"CSAFPID-00019",
"CSAFPID-00020",
"CSAFPID-00021",
"CSAFPID-00022",
"CSAFPID-00023",
"CSAFPID-00024",
"CSAFPID-00025",
"CSAFPID-00026",
"CSAFPID-00027",
"CSAFPID-00028",
"CSAFPID-00029",
"CSAFPID-00030",
"CSAFPID-00031",
"CSAFPID-00032",
"CSAFPID-00033",
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036",
"CSAFPID-00037",
"CSAFPID-00038",
"CSAFPID-00039",
"CSAFPID-00040",
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043",
"CSAFPID-00044"
]
},
{
"category": "no_fix_planned",
"details": "Currently no fix is planned",
"product_ids": [
"CSAFPID-0006",
"CSAFPID-00010",
"CSAFPID-00014",
"CSAFPID-00016",
"CSAFPID-00020",
"CSAFPID-00023",
"CSAFPID-00033"
]
},
{
"category": "none_available",
"details": "Currently no fix is available",
"product_ids": [
"CSAFPID-0003",
"CSAFPID-00028"
]
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00019",
"CSAFPID-00024",
"CSAFPID-00039"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757433/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00025",
"CSAFPID-00026"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757433/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757438/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00037"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757438/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00015",
"CSAFPID-00017",
"CSAFPID-00018"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109751934/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00021",
"CSAFPID-00022"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757434/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00032"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757431/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00038"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109749865/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00027"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757429/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757428/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-0004"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109765263/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-0005"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109757430/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00030",
"CSAFPID-00031"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109768011/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00040"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109800399/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00044"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109796884/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00029"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109768428/"
},
{
"category": "vendor_fix",
"details": "Update to V9.40 or later version",
"product_ids": [
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043"
],
"url": "https://support.industry.siemens.com/cs/ww/en/view/109740816/"
},
{
"category": "mitigation",
"details": "Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid\u0027s reliability can thus be minimized by virtue of the grid design.\nSiemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. \nAs a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment.\n\nRecommended security guidelines can be found at:\n\nhttps://www.siemens.com/gridsecurity",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007",
"CSAFPID-0008",
"CSAFPID-0009",
"CSAFPID-00010",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00014",
"CSAFPID-00015",
"CSAFPID-00016",
"CSAFPID-00017",
"CSAFPID-00018",
"CSAFPID-00019",
"CSAFPID-00020",
"CSAFPID-00021",
"CSAFPID-00022",
"CSAFPID-00023",
"CSAFPID-00024",
"CSAFPID-00025",
"CSAFPID-00026",
"CSAFPID-00027",
"CSAFPID-00028",
"CSAFPID-00029",
"CSAFPID-00030",
"CSAFPID-00031",
"CSAFPID-00032",
"CSAFPID-00033",
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036",
"CSAFPID-00037",
"CSAFPID-00038",
"CSAFPID-00039",
"CSAFPID-00040",
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043",
"CSAFPID-00044"
]
}
],
"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: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",
"CSAFPID-00010",
"CSAFPID-00011",
"CSAFPID-00012",
"CSAFPID-00013",
"CSAFPID-00014",
"CSAFPID-00015",
"CSAFPID-00016",
"CSAFPID-00017",
"CSAFPID-00018",
"CSAFPID-00019",
"CSAFPID-00020",
"CSAFPID-00021",
"CSAFPID-00022",
"CSAFPID-00023",
"CSAFPID-00024",
"CSAFPID-00025",
"CSAFPID-00026",
"CSAFPID-00027",
"CSAFPID-00028",
"CSAFPID-00029",
"CSAFPID-00030",
"CSAFPID-00031",
"CSAFPID-00032",
"CSAFPID-00033",
"CSAFPID-00034",
"CSAFPID-00035",
"CSAFPID-00036",
"CSAFPID-00037",
"CSAFPID-00038",
"CSAFPID-00039",
"CSAFPID-00040",
"CSAFPID-00041",
"CSAFPID-00042",
"CSAFPID-00043",
"CSAFPID-00044"
]
}
],
"title": "CVE-2023-28766"
}
]
}
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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.