Vulnerability-Lookup

CVE-2021-20487 (GCVE-0-2021-20487)

Vulnerability from cvelistv5 – Published: 2021-05-26 16:20 – Updated: 2024-09-16 18:33

Summary

IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

Severity

8 (High)


                        
                          CVSS:3.0/AV:N/UI:N/I:H/AC:H/PR:H/S:C/A:H/C:H/E:U/RL:O/RC:C

CWE

Gain Privileges

Assigner

ibm mitre root

References

2 references

URL	Tags
https://www.ibm.com/support/pages/node/6455911	x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	Power 9 Systems	Affected: FW930 Affected: FW940 Affected: FW941 Affected: OP940	guessed

Date Public

2021-05-25 00:00

Show details on NVD website

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}

CNVD-2021-40866

Vulnerability from cnvd - Published: 2021-06-10

Title

IBM Power9 Self Boot Engine(SBE) 数据伪造问题漏洞

Description

IBM Power9 Self Boot Engine是美国IBM公司的一个芯片。 IBM Power9 Self Boot Engine(SBE) 存在安全漏洞，该漏洞允许具有相应权限的用户注入恶意代码，并通过主机固件签名验证过程破坏主机固件的完整性。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

IBM Power9 Self Boot Engine(SBE) 数据伪造问题漏洞的补丁

Patch Description

IBM Power9 Self Boot Engine是美国IBM公司的一个芯片。 IBM Power9 Self Boot Engine(SBE) 存在安全漏洞，该漏洞允许具有相应权限的用户注入恶意代码，并通过主机固件签名验证过程破坏主机固件的完整性。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.ibm.com/support/pages/node/6455911rm46

Reference

https://www.ibm.com/blogs/psirt/security-bulletin-this-power-system-update-is-being-released-to-address-cve-2021-20487/

Impacted products

Name
IBM IBM Power9 Self Boot Engine(SBE)

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20487",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20487"
    }
  },
  "description": "IBM Power9 Self Boot Engine\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u4e2a\u82af\u7247\u3002\n\nIBM Power9 Self Boot Engine(SBE) \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u5177\u6709\u76f8\u5e94\u6743\u9650\u7684\u7528\u6237\u6ce8\u5165\u6076\u610f\u4ee3\u7801\uff0c\u5e76\u901a\u8fc7\u4e3b\u673a\u56fa\u4ef6\u7b7e\u540d\u9a8c\u8bc1\u8fc7\u7a0b\u7834\u574f\u4e3b\u673a\u56fa\u4ef6\u7684\u5b8c\u6574\u6027\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.ibm.com/support/pages/node/6455911rm46",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40866",
  "openTime": "2021-06-10",
  "patchDescription": "IBM Power9 Self Boot Engine\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u4e2a\u82af\u7247\u3002\r\n\r\nIBM Power9 Self Boot Engine(SBE) \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u5177\u6709\u76f8\u5e94\u6743\u9650\u7684\u7528\u6237\u6ce8\u5165\u6076\u610f\u4ee3\u7801\uff0c\u5e76\u901a\u8fc7\u4e3b\u673a\u56fa\u4ef6\u7b7e\u540d\u9a8c\u8bc1\u8fc7\u7a0b\u7834\u574f\u4e3b\u673a\u56fa\u4ef6\u7684\u5b8c\u6574\u6027\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "IBM Power9 Self Boot Engine(SBE) \u6570\u636e\u4f2a\u9020\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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  "referenceLink": "https://www.ibm.com/blogs/psirt/security-bulletin-this-power-system-update-is-being-released-to-address-cve-2021-20487/",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-26",
  "title": "IBM Power9 Self Boot Engine(SBE) \u6570\u636e\u4f2a\u9020\u95ee\u9898\u6f0f\u6d1e"
}

FKIE_CVE-2021-20487

Vulnerability from fkie_nvd - Published: 2021-05-26 17:15 - Updated: 2026-06-17 03:33

Severity

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Summary

IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

References

URL	Tags
psirt@us.ibm.com	https://exchange.xforce.ibmcloud.com/vulnerabilities/197730	VDB Entry, Vendor Advisory
psirt@us.ibm.com	https://www.ibm.com/support/pages/node/6455911	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://exchange.xforce.ibmcloud.com/vulnerabilities/197730	VDB Entry, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.ibm.com/support/pages/node/6455911	Vendor Advisory

Impacted products

Vendor	Product	Version
ibm	power9_system_firmware	*
ibm	power9_system_firmware	*
ibm	9008-22l	-
ibm	9009-22a	-
ibm	9009-41a	-
ibm	9009-42a	-
ibm	9040-mr9	-
ibm	9080-m9s	-
ibm	9223-22h	-
ibm	9223-42h	-
ibm	power9_system_firmware	*
ibm	9009-22g	-
ibm	9009-41g	-
ibm	9009-42g	-
ibm	9223-22s	-
ibm	9223-42s	-
ibm	scale-out_lc_system_firmware	*
ibm	8335-gth	-
ibm	8335-gtx	-
ibm	9183-22x	-

JSON

To clipboard

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          "product": "Power 9 Systems",
          "vendor": "IBM",
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    ]
  },
  "published": "2021-05-26T17:15:14.260",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/197730"
    },
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.ibm.com/support/pages/node/6455911"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "VDB Entry",
        "Vendor Advisory"
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    },
    {
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        "Vendor Advisory"
      ],
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    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-GWJP-78RH-PCGC

Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03

Details

IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-20487"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-26T17:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.",
  "id": "GHSA-gwjp-78rh-pcgc",
  "modified": "2022-05-24T19:03:20Z",
  "published": "2022-05-24T19:03:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20487"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/197730"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/6455911"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2021-20487

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

Aliases

CVE-2021-20487

Aliases

CVE-2021-20487

JSON

To clipboard

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    "description": "IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.",
    "id": "GSD-2021-20487"
  },
  "gsd": {
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      "remediation": "unknown",
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    },
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  }
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2021-20487 (GCVE-0-2021-20487)

CNVD-2021-40866

FKIE_CVE-2021-20487

GHSA-GWJP-78RH-PCGC

GSD-2021-20487

Tags

Sightings

Nomenclature

Related by attack behaviour