5.9mediumMedium
CVE-2019-25031
Nlnetlabs Unbound
Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 5.9 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness
- CWE-74
- Assigned by
- cve@mitre.org
Dates
- Published
- 2021-04-27
- Last modified
- 2026-08-25
- Sources
- NVD
Affected products
- Nlnetlabs Unbound- 1.9.5
- Debian Debian Linux9.0
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
- https://security.netapp.com/advisory/ntap-20210507-0007/
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
- https://security.netapp.com/advisory/ntap-20210507-0007/