cnvd-2015-07016
Vulnerability from cnvd
Title
NTP任意文件覆盖漏洞
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。由于程序允许使用:config命令无限制地设置pidfile和driftfile路径。远程攻击者可借助ntpd进程的pid或系统时钟的drift利用该漏洞覆盖任意文件。
Severity
中
Patch Name
NTP任意文件覆盖漏洞的补丁
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。由于程序允许使用:config命令无限制地设置pidfile和driftfile路径。远程攻击者可借助ntpd进程的pid或系统时钟的drift利用该漏洞覆盖任意文件。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

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/NtpBug2902

Reference
http://support.ntp.org/bin/view/Main/NtpBug2902
Impacted products
Name
['Ntp Ntp <4.2.8p4', 'Ntp Ntp 4.3.x(<4.3.77)']
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "77278"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7703"
    }
  },
  "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\u7a0b\u5e8f\u5141\u8bb8\u4f7f\u7528:config\u547d\u4ee4\u65e0\u9650\u5236\u5730\u8bbe\u7f6epidfile\u548cdriftfile\u8def\u5f84\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9ntpd\u8fdb\u7a0b\u7684pid\u6216\u7cfb\u7edf\u65f6\u949f\u7684drift\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u4efb\u610f\u6587\u4ef6\u3002",
  "discovererName": "Miroslav Lichvar of Red Hat",
  "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/NtpBug2902",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07016",
  "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\u7a0b\u5e8f\u5141\u8bb8\u4f7f\u7528:config\u547d\u4ee4\u65e0\u9650\u5236\u5730\u8bbe\u7f6epidfile\u548cdriftfile\u8def\u5f84\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9ntpd\u8fdb\u7a0b\u7684pid\u6216\u7cfb\u7edf\u65f6\u949f\u7684drift\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u4efb\u610f\u6587\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",
  "patchName": "NTP\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e\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/NtpBug2902",
  "serverity": "\u4e2d",
  "submitTime": "2015-10-28",
  "title": "NTP\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e"
}


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