Vulnerability-Lookup

CNVD-2016-02667

Vulnerability from cnvd - Published: 2016-05-03

Title

ntpd拒绝服务漏洞（CNVD-2016-02667）

Description

ntpd（Network Time Protocol daemon）是一个操作系统守护进程，它使用网络时间协议（NTP）与时间服务器的系统时间保持同步。 ntpd 4.2.8p7之前4.x版本和4.3.92之前4.3版本中存在安全漏洞。当程序允许远程配置并开启mode7模式时，攻击者可通过创建会话利用该漏洞拒绝服务（异常终止）。

Severity

中

Patch Name

ntpd拒绝服务漏洞（CNVD-2016-02667）的补丁

Patch Description

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/NtpBug3011

Reference

http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security http://support.ntp.org/bin/view/Main/NtpBug3011 http://www.kb.cert.org/vuls/id/718152

Impacted products

Name
['Ntp NTPd 4.x<4.2.8p7', 'Ntp NTPd >4.3，<4.3.92']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-2516"
    }
  },
  "description": "ntpd\uff08Network Time Protocol daemon\uff09\u662f\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5b83\u4f7f\u7528\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff08NTP\uff09\u4e0e\u65f6\u95f4\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u65f6\u95f4\u4fdd\u6301\u540c\u6b65\u3002\r\n\r\nntpd 4.2.8p7\u4e4b\u524d4.x\u7248\u672c\u548c4.3.92\u4e4b\u524d4.3\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u5141\u8bb8\u8fdc\u7a0b\u914d\u7f6e\u5e76\u5f00\u542fmode7\u6a21\u5f0f\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u521b\u5efa\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u62d2\u7edd\u670d\u52a1\uff08\u5f02\u5e38\u7ec8\u6b62\uff09\u3002",
  "discovererName": "Cisco TALOS",
  "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/NtpBug3011",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-02667",
  "openTime": "2016-05-03",
  "patchDescription": "ntpd\uff08Network Time Protocol daemon\uff09\u662f\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5b83\u4f7f\u7528\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff08NTP\uff09\u4e0e\u65f6\u95f4\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u65f6\u95f4\u4fdd\u6301\u540c\u6b65\u3002\r\n\r\nntpd 4.2.8p7\u4e4b\u524d4.x\u7248\u672c\u548c4.3.92\u4e4b\u524d4.3\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u5141\u8bb8\u8fdc\u7a0b\u914d\u7f6e\u5e76\u5f00\u542fmode7\u6a21\u5f0f\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u521b\u5efa\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u62d2\u7edd\u670d\u52a1\uff08\u5f02\u5e38\u7ec8\u6b62\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": "ntpd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-02667\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ntp NTPd 4.x\u003c4.2.8p7",
      "Ntp NTPd \u003e4.3\uff0c\u003c4.3.92"
    ]
  },
  "referenceLink": "http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security\r\nhttp://support.ntp.org/bin/view/Main/NtpBug3011\r\nhttp://www.kb.cert.org/vuls/id/718152",
  "serverity": "\u4e2d",
  "submitTime": "2016-04-28",
  "title": "ntpd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-02667\uff09"
}

CVE-2016-2516 (GCVE-0-2016-2516)

Vulnerability from cvelistv5 – Published: 2017-01-30 21:00 – Updated: 2024-08-05 23:32

Summary

NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
http://www.debian.org/security/2016/dsa-3629	vendor-advisoryx_refsource_DEBIAN
http://www.securityfocus.com/bid/88180	vdb-entryx_refsource_BID
https://www.kb.cert.org/vuls/id/718152	third-party-advisoryx_refsource_CERT-VN
http://www.securitytracker.com/id/1035705	vdb-entryx_refsource_SECTRACK
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2017100…	x_refsource_CONFIRM
http://support.ntp.org/bin/view/Main/NtpBug3011	x_refsource_CONFIRM
https://security.FreeBSD.org/advisories/FreeBSD-S…	vendor-advisoryx_refsource_FREEBSD
https://security.gentoo.org/glsa/201607-15	vendor-advisoryx_refsource_GENTOO

Date Public

2016-02-03 00:00

Show details on NVD website

JSON

To clipboard

{
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          },
          {
            "name": "88180",
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              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/88180"
          },
          {
            "name": "VU#718152",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT-VN",
              "x_transferred"
            ],
            "url": "https://www.kb.cert.org/vuls/id/718152"
          },
          {
            "name": "1035705",
            "tags": [
              "vdb-entry",
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            "url": "http://www.securitytracker.com/id/1035705"
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            "tags": [
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            "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
          },
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          },
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              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://support.ntp.org/bin/view/Main/NtpBug3011"
          },
          {
            "name": "FreeBSD-SA-16:16",
            "tags": [
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            ],
            "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc"
          },
          {
            "name": "GLSA-201607-15",
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            ],
            "url": "https://security.gentoo.org/glsa/201607-15"
          }
        ],
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          "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
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          "tags": [
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          "url": "https://security.netapp.com/advisory/ntap-20171004-0002/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://support.ntp.org/bin/view/Main/NtpBug3011"
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          "name": "FreeBSD-SA-16:16",
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}

Sightings

Author	Source	Type	Date	Other

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.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.