CVE-2016-7073 : An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recurs

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.

Published 2018-09-11 13:29:01

Updated 2019-10-09 23:19:30

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Input validation

Products affected by CVE-2016-7073

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Powerdns » Recursor
Versions before (<) 3.7.4
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
Matching versions
Powerdns » Recursor
Versions from including (>=) 4.0.0 and before (<) 4.0.4
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
Matching versions
Powerdns » Authoritative
Versions from including (>=) 4.0.0 and before (<) 4.0.2
cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*
Matching versions
Powerdns » Authoritative
Versions before (<) 3.4.11
cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2016-7073

Top countries where our scanners detected CVE-2016-7073

Top open port discovered on systems with this issue 53

IPs affected by CVE-2016-7073 6,963

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2016-7073!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-7073

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 37 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-7073

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
5.3	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	3.9	1.4	Red Hat, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2016-7073

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)

References for CVE-2016-7073

https://www.debian.org/security/2017/dsa-3764

Debian -- Security Information -- DSA-3764-1 pdns
Third Party Advisory

CVEs referencing this url
https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/

Advisory 2016-04
Vendor Advisory

CVEs referencing this url
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7073

1627395 – (CVE-2016-7073) CVE-2016-7073 pdns: Insufficient validation of TSIG signatures
Issue Tracking;Third Party Advisory