Vulnerability-Lookup

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": {
    "product": "IBM IBM Power9 Self Boot Engine(SBE)"
  },
  "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"
}

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
IBM	Power 9 Systems	Affected: FW930 Affected: FW940 Affected: FW941 Affected: OP940

Date Public

2021-05-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:45:44.333Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.ibm.com/support/pages/node/6455911"
          },
          {
            "name": "ibm-power9-cve202120487-priv-escalation (197730)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/197730"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Power 9 Systems",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "FW930"
            },
            {
              "status": "affected",
              "version": "FW940"
            },
            {
              "status": "affected",
              "version": "FW941"
            },
            {
              "status": "affected",
              "version": "OP940"
            }
          ]
        }
      ],
      "datePublic": "2021-05-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "CHANGED",
            "temporalScore": 7,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Gain Privileges",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-26T16:20:17.000Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.ibm.com/support/pages/node/6455911"
        },
        {
          "name": "ibm-power9-cve202120487-priv-escalation (197730)",
          "tags": [
            "vdb-entry",
            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/197730"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@us.ibm.com",
          "DATE_PUBLIC": "2021-05-25T00:00:00",
          "ID": "CVE-2021-20487",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Power 9 Systems",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FW930"
                          },
                          {
                            "version_value": "FW940"
                          },
                          {
                            "version_value": "FW941"
                          },
                          {
                            "version_value": "OP940"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "IBM"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "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."
            }
          ]
        },
        "impact": {
          "cvssv3": {
            "BM": {
              "A": "H",
              "AC": "H",
              "AV": "N",
              "C": "H",
              "I": "H",
              "PR": "H",
              "S": "C",
              "UI": "N"
            },
            "TM": {
              "E": "U",
              "RC": "C",
              "RL": "O"
            }
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Gain Privileges"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.ibm.com/support/pages/node/6455911",
              "refsource": "CONFIRM",
              "title": "IBM Security Bulletin 6455911 (Power 9 Systems)",
              "url": "https://www.ibm.com/support/pages/node/6455911"
            },
            {
              "name": "ibm-power9-cve202120487-priv-escalation (197730)",
              "refsource": "XF",
              "title": "X-Force Vulnerability Report",
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/197730"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2021-20487",
    "datePublished": "2021-05-26T16:20:17.769Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-09-16T18:33:23.529Z",
    "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.

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.