github - ghsa-2gfp-93f7-f268

GHSA-2GFP-93F7-F268

Vulnerability from github – Published: 2022-05-24 16:59 – Updated: 2024-04-04 02:31

Details

Mirror zones are a BIND feature allowing recursive servers to pre-cache zone data provided by other servers. A mirror zone is similar to a zone of type secondary, except that its data is subject to DNSSEC validation before being used in answers, as if it had been looked up via traditional recursion, and when mirror zone data cannot be validated, BIND falls back to using traditional recursion instead of the mirror zone. However, an error in the validity checks for the incoming zone data can allow an on-path attacker to replace zone data that was validated with a configured trust anchor with forged data of the attacker's choosing. The mirror zone feature is most often used to serve a local copy of the root zone. If an attacker was able to insert themselves into the network path between a recursive server using a mirror zone and a root name server, this vulnerability could then be used to cause the recursive server to accept a copy of falsified root zone data. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2019-6475"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-10-17T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Mirror zones are a BIND feature allowing recursive servers to pre-cache zone data provided by other servers. A mirror zone is similar to a zone of type secondary, except that its data is subject to DNSSEC validation before being used in answers, as if it had been looked up via traditional recursion, and when mirror zone data cannot be validated, BIND falls back to using traditional recursion instead of the mirror zone. However, an error in the validity checks for the incoming zone data can allow an on-path attacker to replace zone data that was validated with a configured trust anchor with forged data of the attacker\u0027s choosing. The mirror zone feature is most often used to serve a local copy of the root zone. If an attacker was able to insert themselves into the network path between a recursive server using a mirror zone and a root name server, this vulnerability could then be used to cause the recursive server to accept a copy of falsified root zone data. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.",
  "id": "GHSA-2gfp-93f7-f268",
  "modified": "2024-04-04T02:31:12Z",
  "published": "2022-05-24T16:59:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6475"
    },
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      "type": "WEB",
      "url": "https://kb.isc.org/docs/cve-2019-6475"
    },
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      "url": "https://security.netapp.com/advisory/ntap-20191024-0004"
    },
    {
      "type": "WEB",
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    },
    {
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      "url": "https://support.f5.com/csp/article/K42238532?utm_source=f5support\u0026amp;utm_medium=RSS"
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  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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}

CVE-2019-6475 (GCVE-0-2019-6475)

Vulnerability from cvelistv5 – Published: 2019-10-17 19:17 – Updated: 2024-09-16 17:54

Summary

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

An on-path attacker who manages to successfully exploit this vulnerability can replace the mirrored zone (usually the root) with data of their own choosing, effectively bypassing DNSSEC protection.

Assigner

isc

References

URL

Tags

	https://kb.isc.org/docs/cve-2019-6475	x_refsource_CONFIRM
	https://security.netapp.com/advisory/ntap-2019102…	x_refsource_CONFIRM
	https://support.f5.com/csp/article/K42238532?utm_…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	ISC	BIND 9	Affected: 9.14.0 up to 9.14.6 Affected: 9.15.0 up to 9.15.4

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-2GFP-93F7-F268

CVE-2019-6475 (GCVE-0-2019-6475)

Tags

Sightings

Nomenclature