cnvd - cnvd-2021-14789

cnvd-2021-14789

Vulnerability from cnvd

Title: Docker路径遍历漏洞

Description:

Docker是美国Docker公司的一款开源的应用容器引擎。该产品支持在Linux系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。

Docker before versions 9.03.15, 20.10.3存在安全漏洞，该漏洞源于被映射的命名空间中的根用户可以访问主机文件系统。目前没有详细漏洞细节提供。

Severity: 低

Patch Name: Docker路径遍历漏洞的补丁

Patch Description:

Docker before versions 9.03.15, 20.10.3存在安全漏洞，该漏洞源于被映射的命名空间中的根用户可以访问主机文件系统。目前没有详细漏洞细节提供。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:

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/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-21284

Impacted products

Name
['Docker Docker <9.03.15', 'Docker Docker <20.10.3']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21284",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21284"
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  "number": "CNVD-2021-14789",
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  "serverity": "\u4f4e",
  "submitTime": "2021-02-26",
  "title": "Docker\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2021-21284 (GCVE-0-2021-21284)

Vulnerability from cvelistv5

Published

2021-02-02 17:55

Modified

2024-08-03 18:09

Severity ?

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

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Summary

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.

References

▼	URL	Tags
	https://docs.docker.com/engine/release-notes/#20103	x_refsource_MISC
	https://github.com/moby/moby/releases/tag/v20.10.3	x_refsource_MISC
	https://github.com/moby/moby/releases/tag/v19.03.15	x_refsource_MISC
	https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc	x_refsource_CONFIRM
	https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20210226-0005/	x_refsource_CONFIRM
	https://www.debian.org/security/2021/dsa-4865	vendor-advisory, x_refsource_DEBIAN
	https://security.gentoo.org/glsa/202107-23	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	moby	moby	Version: < 19.03.15 Version: >= 20.0.0, < 20.10.3

Show details on NVD website

JSON

To clipboard

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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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