CNVD-2016-00791

Vulnerability from cnvd - Published: 2016-02-03
VLAI
Title
NTP时间戳绕过漏洞
Description
NTP是一种以数据包交换把两台电脑的时钟同步化的网络协议。 NTP存在安全漏洞,允许本地攻击者可发送带有值为零的时间戳的数据包实施中间人攻击,绕过源时间戳限制。
Severity
中
Patch Name
NTP时间戳绕过漏洞的补丁
Patch Description
NTP是一种以数据包交换把两台电脑的时钟同步化的网络协议。 NTP存在安全漏洞,允许本地攻击者可发送带有值为零的时间戳的数据包实施中间人攻击,绕过源时间戳限制。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

用户可参考如下厂商提供的安全补丁以修复该漏洞: http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit

Reference
http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit
Impacted products
Name
Ntp Ntp
Show details on source website

{
  "bids": {
    "bid": {
      "bidNumber": "81811"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8138"
    }
  },
  "description": "NTP\u662f\u4e00\u79cd\u4ee5\u6570\u636e\u5305\u4ea4\u6362\u628a\u4e24\u53f0\u7535\u8111\u7684\u65f6\u949f\u540c\u6b65\u5316\u7684\u7f51\u7edc\u534f\u8bae\u3002\r\n\r\nNTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u53ef\u53d1\u9001\u5e26\u6709\u503c\u4e3a\u96f6\u7684\u65f6\u95f4\u6233\u7684\u6570\u636e\u5305\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u7ed5\u8fc7\u6e90\u65f6\u95f4\u6233\u9650\u5236\u3002",
  "discovererName": "Matthew Van Gundy and Jonathan Gardner of Cisco ASIG.",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-00791",
  "openTime": "2016-02-03",
  "patchDescription": "NTP\u662f\u4e00\u79cd\u4ee5\u6570\u636e\u5305\u4ea4\u6362\u628a\u4e24\u53f0\u7535\u8111\u7684\u65f6\u949f\u540c\u6b65\u5316\u7684\u7f51\u7edc\u534f\u8bae\u3002\r\n\r\nNTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u53ef\u53d1\u9001\u5e26\u6709\u503c\u4e3a\u96f6\u7684\u65f6\u95f4\u6233\u7684\u6570\u636e\u5305\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u7ed5\u8fc7\u6e90\u65f6\u95f4\u6233\u9650\u5236\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": "NTP\u65f6\u95f4\u6233\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Ntp Ntp"
  },
  "referenceLink": "http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit",
  "serverity": "\u4e2d",
  "submitTime": "2016-01-30",
  "title": "NTP\u65f6\u95f4\u6233\u7ed5\u8fc7\u6f0f\u6d1e"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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