cnvd - cnvd-2020-33331

CNVD-2020-33331

Vulnerability from cnvd - Published: 2020-06-19

Title

helm信息泄露漏洞

Description

helm是一款Kubernetes包管理器。 helm 3.1.0版本至3.1.2版本中存在信息泄露漏洞。攻击者可利用该漏洞获取对集群的查询信息。

Severity

中

Patch Name

helm信息泄露漏洞的补丁

Patch Description

helm是一款Kubernetes包管理器。 helm 3.1.0版本至3.1.2版本中存在信息泄露漏洞。攻击者可利用该漏洞获取对集群的查询信息。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-11013

Impacted products

Name
helm helm >=3.1.0，<=3.1.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-11013"
    }
  },
  "description": "helm\u662f\u4e00\u6b3eKubernetes\u5305\u7ba1\u7406\u5668\u3002\n\nhelm 3.1.0\u7248\u672c\u81f33.1.2\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5bf9\u96c6\u7fa4\u7684\u67e5\u8be2\u4fe1\u606f\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-33331",
  "openTime": "2020-06-19",
  "patchDescription": "helm\u662f\u4e00\u6b3eKubernetes\u5305\u7ba1\u7406\u5668\u3002\r\n\r\nhelm 3.1.0\u7248\u672c\u81f33.1.2\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5bf9\u96c6\u7fa4\u7684\u67e5\u8be2\u4fe1\u606f\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": "helm\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "helm helm \u003e=3.1.0\uff0c\u003c=3.1.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-11013",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-26",
  "title": "helm\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2020-11013 (GCVE-0-2020-11013)

Vulnerability from cvelistv5 – Published: 2020-04-24 20:05 – Updated: 2024-08-04 11:21

Summary

Their is an information disclosure vulnerability in Helm from version 3.1.0 and before version 3.2.0. `lookup` is a Helm template function introduced in Helm v3. It is able to lookup resources in the cluster to check for the existence of specific resources and get details about them. This can be used as part of the process to render templates. The documented behavior of `helm template` states that it does not attach to a remote cluster. However, a the recently added `lookup` template function circumvents this restriction and connects to the cluster even during `helm template` and `helm install|update|delete|rollback --dry-run`. The user is not notified of this behavior. Running `helm template` should not make calls to a cluster. This is different from `install`, which is presumed to have access to a cluster in order to load resources into Kubernetes. Helm 2 is unaffected by this vulnerability. A malicious chart author could inject a `lookup` into a chart that, when rendered through `helm template`, performs unannounced lookups against the cluster a user's `KUBECONFIG` file points to. This information can then be disclosed via the output of `helm template`. This issue has been fixed in Helm 3.2.0

Severity ?

8.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M

References

URL

Tags

	https://github.com/helm/helm/security/advisories/…	x_refsource_CONFIRM
	https://github.com/helm/helm/releases/tag/v3.2.0	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	helm	Helm	Affected: >= 3.1.0, < 3.2.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:21:14.350Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/helm/helm/releases/tag/v3.2.0"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Helm",
          "vendor": "helm",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.1.0, \u003c 3.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Their is an information disclosure vulnerability in Helm from version 3.1.0 and before version 3.2.0. `lookup` is a Helm template function introduced in Helm v3. It is able to lookup resources in the cluster to check for the existence of specific resources and get details about them. This can be used as part of the process to render templates. The documented behavior of `helm template` states that it does not attach to a remote cluster. However, a the recently added `lookup` template function circumvents this restriction and connects to the cluster even during `helm template` and `helm install|update|delete|rollback --dry-run`. The user is not notified of this behavior. Running `helm template` should not make calls to a cluster. This is different from `install`, which is presumed to have access to a cluster in order to load resources into Kubernetes. Helm 2 is unaffected by this vulnerability. A malicious chart author could inject a `lookup` into a chart that, when rendered through `helm template`, performs unannounced lookups against the cluster a user\u0026#39;s `KUBECONFIG` file points to. This information can then be disclosed via the output of `helm template`. This issue has been fixed in Helm 3.2.0"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-04-24T20:05:15",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/releases/tag/v3.2.0"
        }
      ],
      "source": {
        "advisory": "GHSA-q8q8-93cv-v6h8",
        "discovery": "UNKNOWN"
      },
      "title": "lookup Function Information Discolosure in Helm",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-11013",
          "STATE": "PUBLIC",
          "TITLE": "lookup Function Information Discolosure in Helm"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Helm",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= 3.1.0, \u003c 3.2.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "helm"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Their is an information disclosure vulnerability in Helm from version 3.1.0 and before version 3.2.0. `lookup` is a Helm template function introduced in Helm v3. It is able to lookup resources in the cluster to check for the existence of specific resources and get details about them. This can be used as part of the process to render templates. The documented behavior of `helm template` states that it does not attach to a remote cluster. However, a the recently added `lookup` template function circumvents this restriction and connects to the cluster even during `helm template` and `helm install|update|delete|rollback --dry-run`. The user is not notified of this behavior. Running `helm template` should not make calls to a cluster. This is different from `install`, which is presumed to have access to a cluster in order to load resources into Kubernetes. Helm 2 is unaffected by this vulnerability. A malicious chart author could inject a `lookup` into a chart that, when rendered through `helm template`, performs unannounced lookups against the cluster a user\u0026#39;s `KUBECONFIG` file points to. This information can then be disclosed via the output of `helm template`. This issue has been fixed in Helm 3.2.0"
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8",
              "refsource": "CONFIRM",
              "url": "https://github.com/helm/helm/security/advisories/GHSA-q8q8-93cv-v6h8"
            },
            {
              "name": "https://github.com/helm/helm/releases/tag/v3.2.0",
              "refsource": "MISC",
              "url": "https://github.com/helm/helm/releases/tag/v3.2.0"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-q8q8-93cv-v6h8",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-11013",
    "datePublished": "2020-04-24T20:05:15",
    "dateReserved": "2020-03-30T00:00:00",
    "dateUpdated": "2024-08-04T11:21:14.350Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2020-33331

CVE-2020-11013 (GCVE-0-2020-11013)

Tags

Sightings

Nomenclature