cnvd - cnvd-2020-36743

cnvd-2020-36743

Vulnerability from cnvd

Title: ntp输入验证错误漏洞

Description:

Network Time Protocol（NTP,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 4.2.8p14之前版本和4.3.100之前的4.3.x版本中ntpd的存在安全漏洞。远程攻击者可通过预测传输时间戳并伪造数据包利用该漏洞导致拒绝服务（守护程序退出或系统时间更改）。

Severity: 中

Patch Name: ntp输入验证错误漏洞的补丁

Patch Description:

Network Time Protocol（NTP,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 4.2.8p14之前版本和4.3.100之前的4.3.x版本中ntpd的存在安全漏洞。远程攻击者可通过预测传输时间戳并伪造数据包利用该漏洞导致拒绝服务（守护程序退出或系统时间更改）。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： http://support.ntp.org/bin/view/Main/NtpBug3596

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-13817

Impacted products

Name
['Ntp Ntp <4.2.8p14', 'Ntp Ntp 4.3.*，<4.3.100']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13817"
    }
  },
  "description": "Network Time Protocol\uff08NTP,\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\n\nntp 4.2.8p14\u4e4b\u524d\u7248\u672c\u548c4.3.100\u4e4b\u524d\u76844.3.x\u7248\u672c\u4e2dntpd\u7684\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u9884\u6d4b\u4f20\u8f93\u65f6\u95f4\u6233\u5e76\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5b88\u62a4\u7a0b\u5e8f\u9000\u51fa\u6216\u7cfb\u7edf\u65f6\u95f4\u66f4\u6539\uff09\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://support.ntp.org/bin/view/Main/NtpBug3596",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-36743",
  "openTime": "2020-07-07",
  "patchDescription": "Network Time Protocol\uff08NTP,\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 4.2.8p14\u4e4b\u524d\u7248\u672c\u548c4.3.100\u4e4b\u524d\u76844.3.x\u7248\u672c\u4e2dntpd\u7684\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u9884\u6d4b\u4f20\u8f93\u65f6\u95f4\u6233\u5e76\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5b88\u62a4\u7a0b\u5e8f\u9000\u51fa\u6216\u7cfb\u7edf\u65f6\u95f4\u66f4\u6539\uff09\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\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ntp Ntp \u003c4.2.8p14",
      "Ntp Ntp 4.3.*\uff0c\u003c4.3.100"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13817",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-05",
  "title": "ntp\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-13817 (GCVE-0-2020-13817)

Vulnerability from cvelistv5

Published

2020-06-04 12:31

Modified

2025-05-05 17:07

Severity ?

5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Summary

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.

References

▼	URL	Tags
	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html	vendor-advisory, x_refsource_SUSE
	https://security.gentoo.org/glsa/202007-12	vendor-advisory, x_refsource_GENTOO
	https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
	http://support.ntp.org/bin/view/Main/NtpBug3596	x_refsource_MISC
	https://bugs.ntp.org/show_bug.cgi?id=3596	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20200625-0004/	x_refsource_CONFIRM

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": "http://support.ntp.org/bin/view/Main/NtpBug3596"
          },
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              "x_transferred"
            ],
            "url": "https://bugs.ntp.org/show_bug.cgi?id=3596"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20200625-0004/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
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              "baseScore": 7.4,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
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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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