Home/CVE/Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle
CVE

CVE-2019-25031

Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle

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.

MEDIUM · CVSS 5.9 EPSS 0.00811
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
▤

Affected Products & Versions

2
nlnetlabs unbound< 1.9.5
debian linuxall versions
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Apr 2021 · 06:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

5
suse-csafSUSE-SU-2022:0176-2
suse-csafSUSE-SU-2022:0301-1
suse-csafopenSUSE-SU-2022:0176-1
suse-csafSUSE-SU-2022:0176-1
usnUSN-4938-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2021/05/msg00007.htmlMailing ListThird Party Advisory
https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/Not ApplicableThird Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0007/Third Party Advisory
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