CNVD-2018-04356
Vulnerability from cnvd - Published: 2018-03-06
VLAI Severity ?
Title
Knot Resolver输入验证漏洞
Description
Knot Resolver是一款DNS解析器,包括DNS解析器库和守护进程。DNSSEC validators components是其中的一个DNS安全扩展验证组件。
Knot Resolver 1.5.2之前版本中的DNSSEC validators组件存在输入验证漏洞。攻击者可通过回放数据包利用该漏洞实施中间人攻击,造成DNS中的数据显示不存在。
Severity
中
Patch Name
Knot Resolver输入验证漏洞的补丁
Patch Description
Knot Resolver是一款DNS解析器,包括DNS解析器库和守护进程。DNSSEC validators components是其中的一个DNS安全扩展验证组件。
Knot Resolver 1.5.2之前版本中的DNSSEC validators组件存在输入验证漏洞。攻击者可通过回放数据包利用该漏洞实施中间人攻击,造成DNS中的数据显示不存在。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
厂商已发布漏洞修复程序,请及时关注更新: https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html
Reference
https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html
Impacted products
| Name | nic Knot Resolver <1.5.2 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2018-1000002"
}
},
"description": "Knot Resolver\u662f\u4e00\u6b3eDNS\u89e3\u6790\u5668\uff0c\u5305\u62ecDNS\u89e3\u6790\u5668\u5e93\u548c\u5b88\u62a4\u8fdb\u7a0b\u3002DNSSEC validators components\u662f\u5176\u4e2d\u7684\u4e00\u4e2aDNS\u5b89\u5168\u6269\u5c55\u9a8c\u8bc1\u7ec4\u4ef6\u3002\r\n\r\nKnot Resolver 1.5.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684DNSSEC validators\u7ec4\u4ef6\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u56de\u653e\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u9020\u6210DNS\u4e2d\u7684\u6570\u636e\u663e\u793a\u4e0d\u5b58\u5728\u3002",
"discovererName": "unknwon",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2018-04356",
"openTime": "2018-03-06",
"patchDescription": "Knot Resolver\u662f\u4e00\u6b3eDNS\u89e3\u6790\u5668\uff0c\u5305\u62ecDNS\u89e3\u6790\u5668\u5e93\u548c\u5b88\u62a4\u8fdb\u7a0b\u3002DNSSEC validators components\u662f\u5176\u4e2d\u7684\u4e00\u4e2aDNS\u5b89\u5168\u6269\u5c55\u9a8c\u8bc1\u7ec4\u4ef6\u3002\r\n\r\nKnot Resolver 1.5.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684DNSSEC validators\u7ec4\u4ef6\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u56de\u653e\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u9020\u6210DNS\u4e2d\u7684\u6570\u636e\u663e\u793a\u4e0d\u5b58\u5728\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": "Knot Resolver\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "nic Knot Resolver \u003c1.5.2"
},
"referenceLink": "https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html",
"serverity": "\u4e2d",
"submitTime": "2018-01-23",
"title": "Knot Resolver\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e"
}
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Sightings
| Author | Source | Type | Date |
|---|
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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