Vulnerability in Nlnetlabs Unbound
CVE-2019-25031
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.013 (70.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Nlnetlabs Unbound
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ (Third Party Advisory, Not Applicable)
- lists.debian.org/debian-lts-announce/2021/05/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210507-0007/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-25031?
- CVE-2019-25031 is a medium-severity vulnerability in Nlnetlabs Unbound, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.9/10. Published 2021-04-27.
- How severe is CVE-2019-25031?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-25031 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.