CVE Vulnerabilities

CVE-2017-15090

Improper Verification of Cryptographic Signature

Published: Jan 23, 2018 | Modified: Oct 09, 2019
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

An issue has been found in the DNSSEC validation component of PowerDNS Recursor from 4.0.0 and up to and including 4.0.6, where the signatures might have been accepted as valid even if the signed data was not in bailiwick of the DNSKEY used to sign it. This allows an attacker in position of man-in-the-middle to alter the content of records by issuing a valid signature for the crafted records.

Weakness

The software does not verify, or incorrectly verifies, the cryptographic signature for data.

Affected Software

Name Vendor Start Version End Version
Recursor Powerdns 4.0.0 4.0.6
Pdns-recursor Ubuntu artful *
Pdns-recursor Ubuntu upstream *
Pdns-recursor Ubuntu xenial *
Pdns-recursor Ubuntu zesty *

References