cnvd-2015-07015
Vulnerability from cnvd
Title: NTP拒绝服务漏洞（CNVD-2015-07015）
Description:
NTP（Network Time Protocol，网络时间协议）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 4.2.8p4之前版本和4.3.77之前4.3.x版本中存在安全漏洞。由于客户端未能正确验证Kiss-of-Death消息中的时间戳字段。攻击者可通过伪造数据包利用该漏洞使客户端延迟或停止查询服务器端的时间更新。
Severity: 中
Patch Name: NTP拒绝服务漏洞（CNVD-2015-07015）的补丁
Patch Description:
NTP（Network Time Protocol，网络时间协议）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 4.2.8p4之前版本和4.3.77之前4.3.x版本中存在安全漏洞。由于客户端未能正确验证Kiss-of-Death消息中的时间戳字段。攻击者可通过伪造数据包利用该漏洞使客户端延迟或停止查询服务器端的时间更新。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:
目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://support.ntp.org/bin/view/Main/NtpBug2901
Reference: http://support.ntp.org/bin/view/Main/NtpBug2901
Impacted products
| Name | ['Ntp Ntp <4.2.8p4', 'Ntp Ntp 4.3.x(<4.3.77)'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2015-7704"
}
},
"description": "NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\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 4.2.8p4\u4e4b\u524d\u7248\u672c\u548c4.3.77\u4e4b\u524d4.3.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1Kiss-of-Death\u6d88\u606f\u4e2d\u7684\u65f6\u95f4\u6233\u5b57\u6bb5\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u5ba2\u6237\u7aef\u5ef6\u8fdf\u6216\u505c\u6b62\u67e5\u8be2\u670d\u52a1\u5668\u7aef\u7684\u65f6\u95f4\u66f4\u65b0\u3002",
"discovererName": "Aanchal Malhotra, Issac E. Cohen, and Sharon Goldberg of Boston University",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://support.ntp.org/bin/view/Main/NtpBug2901",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2015-07015",
"openTime": "2015-10-29",
"patchDescription": "NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\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 4.2.8p4\u4e4b\u524d\u7248\u672c\u548c4.3.77\u4e4b\u524d4.3.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1Kiss-of-Death\u6d88\u606f\u4e2d\u7684\u65f6\u95f4\u6233\u5b57\u6bb5\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u5ba2\u6237\u7aef\u5ef6\u8fdf\u6216\u505c\u6b62\u67e5\u8be2\u670d\u52a1\u5668\u7aef\u7684\u65f6\u95f4\u66f4\u65b0\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07015\uff09\u7684\u8865\u4e01",
"products": {
"product": [
"Ntp Ntp \u003c4.2.8p4",
"Ntp Ntp 4.3.x(\u003c4.3.77)"
]
},
"referenceLink": "http://support.ntp.org/bin/view/Main/NtpBug2901",
"serverity": "\u4e2d",
"submitTime": "2015-10-28",
"title": "NTP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07015\uff09"
}
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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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