cnvd - cnvd-2017-28211

cnvd-2017-28211

Vulnerability from cnvd

Title: MIT Kerberos 5 S4U2Self或S4U2Proxy请求拒绝服务漏洞

Description:

MIT Kerberos 5是一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证，可防止窃听、防止replay攻击等。

MIT Kerberos 5处理无效的S4U2Self或S4U2Proxy请求存在安全漏洞，允许远程攻击者利用漏洞提交特制请求可使KDC断言失败，进行拒绝服务攻击。

Severity: 中

Patch Name: MIT Kerberos 5 S4U2Self或S4U2Proxy请求拒绝服务漏洞的补丁

Patch Description:

MIT Kerberos 5是一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证，可防止窃听、防止replay攻击等。

MIT Kerberos 5处理无效的S4U2Self或S4U2Proxy请求存在安全漏洞，允许远程攻击者利用漏洞提交特制请求可使KDC断言失败，进行拒绝服务攻击。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:

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970

Reference: https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970

Impacted products

Name
MIT Kerberos 5 <=1.7

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "100291"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-11368"
    }
  },
  "description": "MIT Kerberos 5\u662f\u4e00\u5957\u7f51\u7edc\u8ba4\u8bc1\u534f\u8bae\uff0c\u5b83\u91c7\u7528\u5ba2\u6237\u7aef/\u670d\u52a1\u5668\u7ed3\u6784\uff0c\u5e76\u4e14\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u5747\u53ef\u5bf9\u5bf9\u65b9\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\uff0c\u53ef\u9632\u6b62\u7a83\u542c\u3001\u9632\u6b62replay\u653b\u51fb\u7b49\u3002\r\n\r\nMIT Kerberos 5\u5904\u7406\u65e0\u6548\u7684S4U2Self\u6216S4U2Proxy\u8bf7\u6c42\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u63d0\u4ea4\u7279\u5236\u8bf7\u6c42\u53ef\u4f7fKDC\u65ad\u8a00\u5931\u8d25\uff0c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "discovererName": "MIT",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-28211",
  "openTime": "2017-09-26",
  "patchDescription": "MIT Kerberos 5\u662f\u4e00\u5957\u7f51\u7edc\u8ba4\u8bc1\u534f\u8bae\uff0c\u5b83\u91c7\u7528\u5ba2\u6237\u7aef/\u670d\u52a1\u5668\u7ed3\u6784\uff0c\u5e76\u4e14\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u5747\u53ef\u5bf9\u5bf9\u65b9\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\uff0c\u53ef\u9632\u6b62\u7a83\u542c\u3001\u9632\u6b62replay\u653b\u51fb\u7b49\u3002\r\n\r\nMIT Kerberos 5\u5904\u7406\u65e0\u6548\u7684S4U2Self\u6216S4U2Proxy\u8bf7\u6c42\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u63d0\u4ea4\u7279\u5236\u8bf7\u6c42\u53ef\u4f7fKDC\u65ad\u8a00\u5931\u8d25\uff0c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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": "MIT Kerberos 5 S4U2Self\u6216S4U2Proxy\u8bf7\u6c42\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "MIT Kerberos 5 \u003c=1.7"
  },
  "referenceLink": "https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970",
  "serverity": "\u4e2d",
  "submitTime": "2017-08-10",
  "title": "MIT Kerberos 5 S4U2Self\u6216S4U2Proxy\u8bf7\u6c42\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-11368 (GCVE-0-2017-11368)

Vulnerability from cvelistv5

Published

2017-08-09 18:00

Modified

2024-08-05 18:05

Severity ?

CWE

Summary

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

References

▼	URL	Tags
	https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HNWXM6OQU7G23MG7XWIOBRGP43ECLDT/	vendor-advisory, x_refsource_FEDORA
	https://access.redhat.com/errata/RHSA-2018:0666	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/100291	vdb-entry, x_refsource_BID
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBUTXMNZWMVJLQ4NDX5OQFPUVCJRLV3W/	vendor-advisory, x_refsource_FEDORA

Impacted products

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

Show details on NVD website

JSON

To clipboard

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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HNWXM6OQU7G23MG7XWIOBRGP43ECLDT/"
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          },
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        {
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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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