Vulnerability-Lookup

CNVD-2017-15403

Vulnerability from cnvd - Published: 2017-07-19

Title

Knot DNS TSIG认证绕过漏洞

Description

Knot DNS是捷克互联网络信息中心（CZ.NIC）所开发的一款高性能的DNS服务器，它支持所有DNS系统的关键特性，例如区域转换、动态更新和DNS安全扩展（DNSSEC）等。 Knot DNS存在安全漏洞。攻击者可利用该漏洞绕过TSIG身份验证。

Severity

中

Patch Name

Knot DNS TSIG认证绕过漏洞的补丁

Patch Description

Knot DNS是捷克互联网络信息中心（CZ.NIC）所开发的一款高性能的DNS服务器，它支持所有DNS系统的关键特性，例如区域转换、动态更新和DNS安全扩展（DNSSEC）等。 Knot DNS存在安全漏洞。攻击者可利用该漏洞绕过TSIG身份验证。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.knot-dns.cz/

Reference

http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf

Impacted products

Name
Knot DNS Knot DNS

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "99598"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-11104"
    }
  },
  "description": "Knot DNS\u662f\u6377\u514b\u4e92\u8054\u7f51\u7edc\u4fe1\u606f\u4e2d\u5fc3\uff08CZ.NIC\uff09\u6240\u5f00\u53d1\u7684\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684DNS\u670d\u52a1\u5668\uff0c\u5b83\u652f\u6301\u6240\u6709DNS\u7cfb\u7edf\u7684\u5173\u952e\u7279\u6027\uff0c\u4f8b\u5982\u533a\u57df\u8f6c\u6362\u3001\u52a8\u6001\u66f4\u65b0\u548cDNS\u5b89\u5168\u6269\u5c55\uff08DNSSEC\uff09\u7b49\u3002\r\n\r\nKnot DNS\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7TSIG\u8eab\u4efd\u9a8c\u8bc1\u3002",
  "discovererName": "Synactiv",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.knot-dns.cz/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-15403",
  "openTime": "2017-07-19",
  "patchDescription": "Knot DNS\u662f\u6377\u514b\u4e92\u8054\u7f51\u7edc\u4fe1\u606f\u4e2d\u5fc3\uff08CZ.NIC\uff09\u6240\u5f00\u53d1\u7684\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684DNS\u670d\u52a1\u5668\uff0c\u5b83\u652f\u6301\u6240\u6709DNS\u7cfb\u7edf\u7684\u5173\u952e\u7279\u6027\uff0c\u4f8b\u5982\u533a\u57df\u8f6c\u6362\u3001\u52a8\u6001\u66f4\u65b0\u548cDNS\u5b89\u5168\u6269\u5c55\uff08DNSSEC\uff09\u7b49\u3002\r\n\r\nKnot DNS\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7TSIG\u8eab\u4efd\u9a8c\u8bc1\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 DNS TSIG\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Knot DNS Knot DNS"
  },
  "referenceLink": "http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf",
  "serverity": "\u4e2d",
  "submitTime": "2017-07-10",
  "title": "Knot DNS TSIG\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-11104 (GCVE-0-2017-11104)

Vulnerability from cvelistv5 – Published: 2017-07-08 10:00 – Updated: 2024-08-05 17:57

Summary

Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
http://www.debian.org/security/2017/dsa-3910	vendor-advisoryx_refsource_DEBIAN
http://www.securityfocus.com/bid/99598	vdb-entryx_refsource_BID
https://bugs.debian.org/865678	x_refsource_MISC
http://www.synacktiv.ninja/ressources/Knot_DNS_TS…	x_refsource_MISC
https://lists.nic.cz/pipermail/knot-dns-users/201…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2017-07-08 00:00

Show details on NVD website

JSON

To clipboard

{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T17:57:57.864Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "http://www.debian.org/security/2017/dsa-3910"
          },
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            ],
            "url": "http://www.securityfocus.com/bid/99598"
          },
          {
            "tags": [
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            ],
            "url": "https://bugs.debian.org/865678"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html"
          },
          {
            "name": "openSUSE-SU-2020:1086",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html"
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html"
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          "url": "http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf"
        },
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          "tags": [
            "x_refsource_MISC"
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          "url": "https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html"
        },
        {
          "name": "openSUSE-SU-2020:1086",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html"
        },
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          "name": "openSUSE-SU-2020:1085",
          "tags": [
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          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html"
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          "tags": [
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          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html"
        },
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          "name": "openSUSE-SU-2020:1232",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html"
        }
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    "dateUpdated": "2024-08-05T17:57:57.864Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.