cnvd - cnvd-2021-25272

cnvd-2021-25272

Vulnerability from cnvd

Title: OpenSSH信息泄露漏洞

Description:

OpenSSH（OpenBSD Secure Shell）是Openbsd计划组的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。

OpenSSH 5.7版本至8.4版本的客户端中存在信息泄露漏洞。攻击者可利用该漏洞获取信息。

Severity: 中

Formal description:

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://www.openssh.com/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-14145

Impacted products

Name
Openbsd OpenSSH >=5.7，<=8.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14145"
    }
  },
  "description": "OpenSSH\uff08OpenBSD Secure Shell\uff09\u662fOpenbsd\u8ba1\u5212\u7ec4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u8be5\u5de5\u5177\u662fSSH\u534f\u8bae\u7684\u5f00\u6e90\u5b9e\u73b0\uff0c\u652f\u6301\u5bf9\u6240\u6709\u7684\u4f20\u8f93\u8fdb\u884c\u52a0\u5bc6\uff0c\u53ef\u6709\u6548\u963b\u6b62\u7a83\u542c\u3001\u8fde\u63a5\u52ab\u6301\u4ee5\u53ca\u5176\u4ed6\u7f51\u7edc\u7ea7\u7684\u653b\u51fb\u3002\n\nOpenSSH 5.7\u7248\u672c\u81f38.4\u7248\u672c\u7684\u5ba2\u6237\u7aef\u4e2d\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u4fe1\u606f\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://www.openssh.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-25272",
  "openTime": "2021-04-06",
  "products": {
    "product": "Openbsd OpenSSH \u003e=5.7\uff0c\u003c=8.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14145",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-30",
  "title": "OpenSSH\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2020-14145 (GCVE-0-2020-14145)

Vulnerability from cvelistv5

Published

2020-06-29 17:33

Modified

2024-08-04 12:39

Severity ?

CWE

Summary

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.

References

▼	URL	Tags
	https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1	x_refsource_MISC
	https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20200709-0004/	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2020/12/02/1	mailing-list, x_refsource_MLIST
	https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedefaa5fc362d	x_refsource_MISC
	https://docs.ssh-mitm.at/CVE-2020-14145.html	x_refsource_MISC
	https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/session/cve202014145.py	x_refsource_MISC
	https://security.gentoo.org/glsa/202105-35	vendor-advisory, x_refsource_GENTOO

Impacted products

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

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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