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

Vulnerability from cvelistv5 – Published: 2017-07-08 10:00 – Updated: 2024-08-05 17:57
VLAI
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
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • n/a
Assigner
References
Date Public
2017-07-08 00:00
Show details on NVD website
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Link\"]},{\"url\":\"http://www.debian.org/security/2017/dsa-3910\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/99598\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\"]},{\"url\":\"http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mitigation\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://bugs.debian.org/865678\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Mailing List\",\"Patch\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-11-21T17:15:39+00:00",
      "cve": "CVE-2017-11104",
      "id": "CVE-2017-11104",
      "initial_release_date": "2017-06-23T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "knot: TSIG authentication bypass due to improper TSIG validity period check",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-11104.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-04-20T23:24:06Z",
      "cve": "CVE-2017-11104",
      "id": "CVE-2017-11104",
      "initial_release_date": "2023-02-15T04:43:17Z",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-11104",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-11104.json",
      "version": "8"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.