cnvd - cnvd-2020-31521

cnvd-2020-31521

Vulnerability from cnvd

Title: Google Kubernetes跨站请求伪造漏洞

Description:

Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。

Google Kubernetes中的kube-controller-manager存在安全漏洞。该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。远程攻击者可以利用此漏洞进行SSRF攻击，从未受保护的端点泄漏泄露多达500字节的任意信息。

Severity: 低

Patch Name: Google Kubernetes跨站请求伪造漏洞的补丁

Patch Description:

Google Kubernetes中的kube-controller-manager存在安全漏洞。该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。远程攻击者可以利用此漏洞进行SSRF攻击，从未受保护的端点泄漏泄露多达500字节的任意信息。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/kubernetes/kubernetes/issues/91542

Reference: https://access.redhat.com/security/cve/cve-2020-8555

Impacted products

Name
Google Kubernetes

Show details on source website

JSON

To clipboard

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CVE-2020-8555 (GCVE-0-2020-8555)

Vulnerability from cvelistv5

Published

2020-06-04 21:50

Modified

2024-09-16 18:39

Severity ?

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

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Summary

The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).

References

▼	URL	Tags
	http://www.openwall.com/lists/oss-security/2020/06/01/4	mailing-list, x_refsource_MLIST
	https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion	mailing-list, x_refsource_MLIST
	https://github.com/kubernetes/kubernetes/issues/91542	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/	vendor-advisory, x_refsource_FEDORA
	https://security.netapp.com/advisory/ntap-20200724-0005/	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2021/05/04/8	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	Kubernetes	Kubernetes	Version: 1.18.0 Version: 1.1 Version: 1.2 Version: 1.3 Version: 1.4 Version: 1.5 Version: 1.6 Version: 1.7 Version: 1.8 Version: 1.9 Version: 1.10 Version: 1.11 Version: 1.12 Version: 1.13 Version: 1.14 Version: 1.15 < 1.15.12 Version: 1.16 < 1.16.9 Version: 1.17 < 1.17.5

Show details on NVD website

JSON

To clipboard

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            "https://github.com/kubernetes/kubernetes/issues/91542"
          ],
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "Prior to upgrading, this vulnerability can be mitigated by adding endpoint protections on the master or restricting usage of the vulnerable volume types (for example by constraining usage with a PodSecurityPolicy or third-party admission controller such as Gatekeeper) and restricting StorageClass write permissions through RBAC."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "cveId": "CVE-2020-8555",
    "datePublished": "2020-06-04T21:50:11.749943Z",
    "dateReserved": "2020-02-03T00:00:00",
    "dateUpdated": "2024-09-16T18:39:58.006Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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