Medium severity · published Apr 27, 2021
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
5.9
CVSS
1.7%
EPSS
No
On KEV
Description
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
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
UN
Unbound · Nlnetlabs
before 1.9.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-25031
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-25031
Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
Not Applicable
https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0007/
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