Vulnerability-Lookup

CNVD-2021-28696

Vulnerability from cnvd - Published: 2021-04-15

Title

Siemens Nucleus产品IPv6堆栈拒绝服务漏洞（CNVD-2021-28696）

Description

Nucleus NET模块包含了一系列符合标准的网络和通信协议、驱动程序和实用程序，以在任何嵌入式设备中提供全功能的网络支持。Nucleus RTOS提供了一个高度可扩展的基于微内核的实时操作系统，该系统设计用于航天、工业和医疗应用范围内的系统的可扩展性和可靠性。VSTAR是一个完整的基于AUTOSAR 4的ECU解决方案，为及时部署产品提供工具和嵌入式软件。Nucleus ReadyStart是一个具有集成软件IP、工具和服务的平台。 Siemens Nucleus产品存在安全漏洞。攻击者可利用漏洞通过提供任意长度值将函数放入无穷大。

Severity

高

Patch Name

Siemens Nucleus产品IPv6堆栈拒绝服务漏洞（CNVD-2021-28696）的补丁

Patch Description

Formal description

用户可参考如下供应商提供的安全公告获得补丁信息： https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf

Impacted products

Name
['Siemens VSTAR', 'Siemens Nucleus Source Code', 'Siemens Nucleus NET', 'Siemens Nucleus ReadyStart', 'Siemens Nucleus 4 < V4.1.0']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-25664"
    }
  },
  "description": "Nucleus NET\u6a21\u5757\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u7b26\u5408\u6807\u51c6\u7684\u7f51\u7edc\u548c\u901a\u4fe1\u534f\u8bae\u3001\u9a71\u52a8\u7a0b\u5e8f\u548c\u5b9e\u7528\u7a0b\u5e8f\uff0c\u4ee5\u5728\u4efb\u4f55\u5d4c\u5165\u5f0f\u8bbe\u5907\u4e2d\u63d0\u4f9b\u5168\u529f\u80fd\u7684\u7f51\u7edc\u652f\u6301\u3002Nucleus RTOS\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u5ea6\u53ef\u6269\u5c55\u7684\u57fa\u4e8e\u5fae\u5185\u6838\u7684\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u8bbe\u8ba1\u7528\u4e8e\u822a\u5929\u3001\u5de5\u4e1a\u548c\u533b\u7597\u5e94\u7528\u8303\u56f4\u5185\u7684\u7cfb\u7edf\u7684\u53ef\u6269\u5c55\u6027\u548c\u53ef\u9760\u6027\u3002VSTAR\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u57fa\u4e8eAUTOSAR 4\u7684ECU\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u53ca\u65f6\u90e8\u7f72\u4ea7\u54c1\u63d0\u4f9b\u5de5\u5177\u548c\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u3002Nucleus ReadyStart\u662f\u4e00\u4e2a\u5177\u6709\u96c6\u6210\u8f6f\u4ef6IP\u3001\u5de5\u5177\u548c\u670d\u52a1\u7684\u5e73\u53f0\u3002\n\nSiemens Nucleus\u4ea7\u54c1\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u63d0\u4f9b\u4efb\u610f\u957f\u5ea6\u503c\u5c06\u51fd\u6570\u653e\u5165\u65e0\u7a77\u5927\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-28696",
  "openTime": "2021-04-15",
  "patchDescription": "Nucleus NET\u6a21\u5757\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u7b26\u5408\u6807\u51c6\u7684\u7f51\u7edc\u548c\u901a\u4fe1\u534f\u8bae\u3001\u9a71\u52a8\u7a0b\u5e8f\u548c\u5b9e\u7528\u7a0b\u5e8f\uff0c\u4ee5\u5728\u4efb\u4f55\u5d4c\u5165\u5f0f\u8bbe\u5907\u4e2d\u63d0\u4f9b\u5168\u529f\u80fd\u7684\u7f51\u7edc\u652f\u6301\u3002Nucleus RTOS\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u5ea6\u53ef\u6269\u5c55\u7684\u57fa\u4e8e\u5fae\u5185\u6838\u7684\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u8bbe\u8ba1\u7528\u4e8e\u822a\u5929\u3001\u5de5\u4e1a\u548c\u533b\u7597\u5e94\u7528\u8303\u56f4\u5185\u7684\u7cfb\u7edf\u7684\u53ef\u6269\u5c55\u6027\u548c\u53ef\u9760\u6027\u3002VSTAR\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u57fa\u4e8eAUTOSAR 4\u7684ECU\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u53ca\u65f6\u90e8\u7f72\u4ea7\u54c1\u63d0\u4f9b\u5de5\u5177\u548c\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u3002Nucleus ReadyStart\u662f\u4e00\u4e2a\u5177\u6709\u96c6\u6210\u8f6f\u4ef6IP\u3001\u5de5\u5177\u548c\u670d\u52a1\u7684\u5e73\u53f0\u3002\r\n\r\nSiemens Nucleus\u4ea7\u54c1\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u63d0\u4f9b\u4efb\u610f\u957f\u5ea6\u503c\u5c06\u51fd\u6570\u653e\u5165\u65e0\u7a77\u5927\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Siemens Nucleus\u4ea7\u54c1IPv6\u5806\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-28696\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Siemens VSTAR",
      "Siemens Nucleus Source Code",
      "Siemens Nucleus NET",
      "Siemens Nucleus ReadyStart",
      "Siemens Nucleus 4 \u003c V4.1.0"
    ]
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-13",
  "title": "Siemens Nucleus\u4ea7\u54c1IPv6\u5806\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-28696\uff09"
}

CVE-2021-25664 (GCVE-0-2021-25664)

Vulnerability from cvelistv5 – Published: 2021-04-22 20:42 – Updated: 2025-03-11 09:47

Summary

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values.

Severity

7.5 (High)


                        
                          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

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

siemens icscert root

References

3 references

URL	Tags
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05	x_refsource_MISC
https://cert-portal.siemens.com/productcert/html/…

Impacted products

6 products

Vendor	Product	Version
Siemens	Capital Embedded AR Classic 431-422	Affected: 0 , < * (custom)
Siemens	Capital Embedded AR Classic R20-11	Affected: 0 , < V2303 (custom)
Siemens	Nucleus NET	Affected: All versions
Siemens	Nucleus ReadyStart V3	Affected: 0 , < V2017.02.4 (custom)
Siemens	Nucleus ReadyStart V4	Affected: 0 , < V4.1.0 (custom)
Siemens	Nucleus Source Code	Affected: 0 , < * (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:11:27.513Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-248289.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Capital Embedded AR Classic 431-422",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Capital Embedded AR Classic R20-11",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V2303",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Nucleus NET",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Nucleus ReadyStart V3",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V2017.02.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Nucleus ReadyStart V4",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V4.1.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Nucleus Source Code",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions \u003c V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions \u003c V2017.02.4), Nucleus ReadyStart V4 (All versions \u003c V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-11T09:47:35.103Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/html/ssa-248289.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2021-25664",
    "datePublished": "2021-04-22T20:42:20.000Z",
    "dateReserved": "2021-01-21T00:00:00.000Z",
    "dateUpdated": "2025-03-11T09:47:35.103Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2021-28696

CVE-2021-25664 (GCVE-0-2021-25664)

Tags

Sightings

Nomenclature

Related by attack behaviour