CNVD-2016-03822
Vulnerability from cnvd - Published: 2016-06-07
VLAI
Title
ntpd存在未明漏洞（CNVD-2016-03822）
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。
NTP.org ntpd 4.2.8p8之前的版本中存在未明漏洞。攻击者可通过发送重复的伪造数据包利用该漏洞造成关联的同级变量被清除。
Severity
高
Patch Name
ntpd存在未明漏洞（CNVD-2016-03822）的补丁
Patch 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。
NTP.org ntpd 4.2.8p8之前的版本中存在未明漏洞。攻击者可通过发送重复的伪造数据包利用该漏洞造成关联的同级变量被清除。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/NtpBug3043
Reference
http://support.ntp.org/bin/view/Main/NtpBug3043
http://www.kb.cert.org/vuls/id/321640
Impacted products
| Name | Ntp NTPd <4.2.8p8 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-4955"
}
},
"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\nNTP.org ntpd 4.2.8p8\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u91cd\u590d\u7684\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5173\u8054\u7684\u540c\u7ea7\u53d8\u91cf\u88ab\u6e05\u9664\u3002",
"discovererName": "Nicolas Edet of Cisco, Miroslav Lichvar of Red Hat, and Jakub Prokes 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/NtpBug3043",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-03822",
"openTime": "2016-06-07",
"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\nNTP.org ntpd 4.2.8p8\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u91cd\u590d\u7684\u4f2a\u9020\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5173\u8054\u7684\u540c\u7ea7\u53d8\u91cf\u88ab\u6e05\u9664\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\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2016-03822\uff09\u7684\u8865\u4e01",
"products": {
"product": "Ntp NTPd \u003c4.2.8p8"
},
"referenceLink": "http://support.ntp.org/bin/view/Main/NtpBug3043\r\nhttp://www.kb.cert.org/vuls/id/321640",
"serverity": "\u9ad8",
"submitTime": "2016-06-03",
"title": "ntpd\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2016-03822\uff09"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
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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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.
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