Vulnerability-Lookup

CNVD-2015-07183

Vulnerability from cnvd - Published: 2015-11-03

Title

NTP拒绝服务漏洞（CNVD-2015-07183）

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，远程攻击者可发送带有较大值的模式6（MODE_CONTROL）或模式7（MODE_PRIVATE）数据包，使后台程序崩溃。

Severity

中

Patch Name

NTP拒绝服务漏洞（ CNVD-2015-07183）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，远程攻击者可发送带有较大值的模式6（MODE_CONTROL）或模式7（MODE_PRIVATE）数据包，使后台程序崩溃。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/NtpBug2922

Reference

http://support.ntp.org/bin/view/Main/NtpBug2922

Impacted products

Name
['Ntp Ntp <4.2.8p4', 'Ntp Ntp 4.3.x(<4.3.77)']

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "77283"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7855"
    }
  },
  "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\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u53d1\u9001\u5e26\u6709\u8f83\u5927\u503c\u7684\u6a21\u5f0f6\uff08MODE_CONTROL\uff09\u6216\u6a21\u5f0f7\uff08MODE_PRIVATE\uff09\u6570\u636e\u5305\uff0c\u4f7f\u540e\u53f0\u7a0b\u5e8f\u5d29\u6e83\u3002",
  "discovererName": "John D \"Doug\" Birdwell with the Institute for Defense Analyses",
  "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/NtpBug2922",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07183",
  "openTime": "2015-11-03",
  "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\nNTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u53d1\u9001\u5e26\u6709\u8f83\u5927\u503c\u7684\u6a21\u5f0f6\uff08MODE_CONTROL\uff09\u6216\u6a21\u5f0f7\uff08MODE_PRIVATE\uff09\u6570\u636e\u5305\uff0c\u4f7f\u540e\u53f0\u7a0b\u5e8f\u5d29\u6e83\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\uff08 CNVD-2015-07183\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/NtpBug2922",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-01",
  "title": "NTP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07183\uff09"
}

CVE-2015-7855 (GCVE-0-2015-7855)

Vulnerability from cvelistv5 – Published: 2017-08-07 20:00 – Updated: 2024-08-06 08:06

Summary

The decodenetnum function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (assertion failure) via a 6 or mode 7 packet containing a long data value.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

11 references

URL	Tags
https://www.exploit-db.com/exploits/40840/	exploitx_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/77283	vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1033951	vdb-entryx_refsource_SECTRACK
http://www.debian.org/security/2015/dsa-3388	vendor-advisoryx_refsource_DEBIAN
https://bugzilla.redhat.com/show_bug.cgi?id=1274264	x_refsource_CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/publ…	x_refsource_CONFIRM
http://support.ntp.org/bin/view/Main/NtpBug2922	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201607-15	vendor-advisoryx_refsource_GENTOO
https://security.netapp.com/advisory/ntap-2017100…	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11	x_refsource_CONFIRM

Date Public

2015-10-21 00:00

Show details on NVD website

JSON

To clipboard

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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.

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.

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Action not permitted

CNVD-2015-07183

CVE-2015-7855 (GCVE-0-2015-7855)

Tags

Sightings

Nomenclature

Related by attack behaviour