BOGUS configured primary hostname accepted for XFR in auth/rpz zones (NLnet Labs Unbound)
En bref
- Source
- NVD
- EPSS
- EPSS 0.13 % · centile 3 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- NLnet Labs
- Statut NVD
- Analyzed
Description
In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when an auth/rpz zone has a configured primary hostname that resolves to BOGUS A/AAAA, it is still considered as a possible XFR endpoint. A malicious actor that can spoof the hostname's A/AAAA record (no valid RRSIG required) becomes the zone's XFR primary and can replaces the entire zone/the resolver's entire response policy.
Faiblesses (CWE)
- CWE-345 — Vérification insuffisante de l'authenticité des données
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L | NLnet Labs |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L | NVD · sep@nlnetlabs.nl (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-47674
- GCVE · GCVE-0-2026-50248
Configurations affectées (CPE NVD)
cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*≥ 1.7.0 < 1.25.2
Produits affectés
| Produit | Versions |
|---|---|
| NLnet Labs · Unbound | affected 1.7.0 < 1.25.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |