cnvd - cnvd-2020-46821

cnvd-2020-46821

Vulnerability from cnvd

Title: systemd信任管理问题漏洞（CNVD-2020-46821）

Description:

systemd是德国Lennart Poettering软件开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。

systemd 239版本至244版本中存在信任管理问题漏洞，该漏洞源于网络系统或产品中缺乏有效的信任管理机制，攻击者可通过默认密码或者硬编码密码、硬编码证书等利用该漏洞攻击受影响组件。

Severity: 高

Patch Name: systemd信任管理问题漏洞（CNVD-2020-46821）的补丁

Patch Description:

systemd 239版本至244版本中存在信任管理问题漏洞，该漏洞源于网络系统或产品中缺乏有效的信任管理机制，攻击者可通过默认密码或者硬编码密码、硬编码证书等利用该漏洞攻击受影响组件。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://github.com/systemd/systemd

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-21029

Impacted products

Name
systemd systemd >=239，<=244

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-21029",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2018-21029"
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  "description": "systemd\u662f\u5fb7\u56fdLennart Poettering\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\u4e00\u6b3e\u57fa\u4e8eLinux\u7684\u7cfb\u7edf\u548c\u670d\u52a1\u7ba1\u7406\u5668\u3002\u8be5\u4ea7\u54c1\u517c\u5bb9\u4e86SysV\u548cLSB\u7684\u542f\u52a8\u811a\u672c\uff0c\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6765\u8868\u793a\u7cfb\u7edf\u670d\u52a1\u95f4\u4f9d\u8d56\u5173\u7cfb\u7684\u6846\u67b6\u3002\n\nsystemd 239\u7248\u672c\u81f3244\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u4e2d\u7f3a\u4e4f\u6709\u6548\u7684\u4fe1\u4efb\u7ba1\u7406\u673a\u5236\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u9ed8\u8ba4\u5bc6\u7801\u6216\u8005\u786c\u7f16\u7801\u5bc6\u7801\u3001\u786c\u7f16\u7801\u8bc1\u4e66\u7b49\u5229\u7528\u8be5\u6f0f\u6d1e\u653b\u51fb\u53d7\u5f71\u54cd\u7ec4\u4ef6\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://github.com/systemd/systemd",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-46821",
  "openTime": "2020-08-19",
  "patchDescription": "systemd\u662f\u5fb7\u56fdLennart Poettering\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\u4e00\u6b3e\u57fa\u4e8eLinux\u7684\u7cfb\u7edf\u548c\u670d\u52a1\u7ba1\u7406\u5668\u3002\u8be5\u4ea7\u54c1\u517c\u5bb9\u4e86SysV\u548cLSB\u7684\u542f\u52a8\u811a\u672c\uff0c\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6765\u8868\u793a\u7cfb\u7edf\u670d\u52a1\u95f4\u4f9d\u8d56\u5173\u7cfb\u7684\u6846\u67b6\u3002\r\n\r\nsystemd 239\u7248\u672c\u81f3244\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u4e2d\u7f3a\u4e4f\u6709\u6548\u7684\u4fe1\u4efb\u7ba1\u7406\u673a\u5236\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u9ed8\u8ba4\u5bc6\u7801\u6216\u8005\u786c\u7f16\u7801\u5bc6\u7801\u3001\u786c\u7f16\u7801\u8bc1\u4e66\u7b49\u5229\u7528\u8be5\u6f0f\u6d1e\u653b\u51fb\u53d7\u5f71\u54cd\u7ec4\u4ef6\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",
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  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-21029",
  "serverity": "\u9ad8",
  "submitTime": "2019-12-02",
  "title": "systemd\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-46821\uff09"
}

CVE-2018-21029 (GCVE-0-2018-21029)

Vulnerability from cvelistv5

Published

2019-10-30 21:46

Modified

2024-08-05 12:19

Severity ?

CWE

Summary

systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTLS backend. NOTE: This has been disputed by the developer as not a vulnerability since hostname validation does not have anything to do with this issue (i.e. there is no hostname to be sent)

References

▼	URL	Tags
	https://github.com/systemd/systemd/issues/9397	x_refsource_MISC
	https://blog.cloudflare.com/dns-encryption-explained/	x_refsource_MISC
	https://github.com/systemd/systemd/blob/v243/src/resolve/resolved-dnstls-gnutls.c#L62-L63	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NLJVOJMB6ANDILRLDZK26YGLYBEPHKY/	vendor-advisory, x_refsource_FEDORA
	https://security.netapp.com/advisory/ntap-20191122-0002/	x_refsource_CONFIRM
	https://github.com/systemd/systemd/pull/13870	x_refsource_MISC
	https://github.com/systemd/systemd/blob/v243/man/resolved.conf.xml#L196-L207	x_refsource_MISC
	https://github.com/systemd/systemd/blob/v239/man/resolved.conf.xml#L199-L207	x_refsource_MISC
	https://tools.ietf.org/html/rfc7858#section-4.1	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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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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