CVE-2016-7074 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7074 https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/ https://www.debian.org/security/2017/dsa-3764

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9