SARA / Free Tools / CVE / CVE-2019-6475

CVE-2019-6475 — Mirror zones are a BIND feature allowing recursive servers to pre-cache zone dat

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 tr

CVSS
5.9 MEDIUM
EPSS
0.62% (top 30.20%)
CWE
—
Published
2019-10-17T19:17:36.355Z
Last modified
2024-09-16T17:54:52.004Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
ISCBIND 99.14.0 up to 9.14.6, 9.15.0 up to 9.15.4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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