CVE-2016-7073

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

11/09/2018

Last modified:

17/06/2026

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 of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:powerdns:authoritative::::::::		3.4.11 (excluding)
cpe:2.3:a:powerdns:authoritative::::::::	4.0.0 (including)	4.0.2 (excluding)
cpe:2.3:a:powerdns:recursor::::::::		3.7.4 (excluding)
cpe:2.3:a:powerdns:recursor::::::::	4.0.0 (including)	4.0.4 (excluding)
cpe:2.3:o:debian:debian_linux:8.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2016-7073

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools