CNVD-2016-02740
Vulnerability from cnvd - Published: 2016-05-05
VLAI
Title
ntpd系统时间修改漏洞（CNVD-2016-02740）
Description
ntpd是一个操作系统守护进程，它使用网络时间协议与时间服务器的系统时间保持同步。
ntpd存在安全漏洞，允许远程攻击者可通过伪造数据包，将基本的client/server模式更改为交错对称模式修改客户端的系统时间。
Severity
中
Patch Name
ntpd系统时间修改漏洞（CNVD-2016-02740）的补丁
Patch Description
ntpd是一个操作系统守护进程，它使用网络时间协议与时间服务器的系统时间保持同步。
ntpd存在安全漏洞，允许远程攻击者可通过伪造数据包，将基本的client/server模式更改为交错对称模式修改客户端的系统时间。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/NtpBug2978
Reference
http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security
Impacted products
| Name | ['Ntp NTPd 4.x<4.2.8p7', 'Ntp NTPd >4.3，<4.3.92'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-1548"
}
},
"description": "ntpd\u662f\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5b83\u4f7f\u7528\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\u4e0e\u65f6\u95f4\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u65f6\u95f4\u4fdd\u6301\u540c\u6b65\u3002\r\n\r\nntpd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f2a\u9020\u6570\u636e\u5305\uff0c\u5c06\u57fa\u672c\u7684client/server\u6a21\u5f0f\u66f4\u6539\u4e3a\u4ea4\u9519\u5bf9\u79f0\u6a21\u5f0f\u4fee\u6539\u5ba2\u6237\u7aef\u7684\u7cfb\u7edf\u65f6\u95f4\u3002",
"discovererName": "Cisco TALOS",
"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/NtpBug2978",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-02740",
"openTime": "2016-05-05",
"patchDescription": "ntpd\u662f\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5b83\u4f7f\u7528\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\u4e0e\u65f6\u95f4\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u65f6\u95f4\u4fdd\u6301\u540c\u6b65\u3002\r\n\r\nntpd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4f2a\u9020\u6570\u636e\u5305\uff0c\u5c06\u57fa\u672c\u7684client/server\u6a21\u5f0f\u66f4\u6539\u4e3a\u4ea4\u9519\u5bf9\u79f0\u6a21\u5f0f\u4fee\u6539\u5ba2\u6237\u7aef\u7684\u7cfb\u7edf\u65f6\u95f4\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\u7cfb\u7edf\u65f6\u95f4\u4fee\u6539\u6f0f\u6d1e\uff08CNVD-2016-02740\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",
"serverity": "\u4e2d",
"submitTime": "2016-04-30",
"title": "ntpd\u7cfb\u7edf\u65f6\u95f4\u4fee\u6539\u6f0f\u6d1e\uff08CNVD-2016-02740\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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