CVE-2016-7074

MEDIUM

PowerDNS Authoritative < 3.4.11 and Recursor < 4.0.4 - AXFR TSIG Signature Bypass via Missing Last Record Check

Title source: llm
STIX 2.1

Description

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.

References (3)

Core 3
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7074
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3764

Scores

CVSS v3 5.3
EPSS 0.0122
EPSS Percentile 65.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-20
Status published
Products (3)
debian/debian_linux 8.0
powerdns/authoritative < 3.4.11
powerdns/recursor < 4.0.4
Published Sep 11, 2018
Tracked Since Feb 18, 2026