CVE-2019-3807

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.

Se ha encontrado un problema en PowerDNS Recursor, en versiones 4.1.x anteriores a la 4.1.9, en el que los registros en la sección "answers" de las respuestas recibidas desde servidores autoritativos sin el flag AA no se validaban correctamente, lo que permite que un atacante omita la validación DNSSEC.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-03 CVE Reserved
2019-01-29 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation
CWE-345: Insufficient Verification of Data Authenticity

CAPEC

References (2)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Powerdns Search vendor "Powerdns"		Recursor Search vendor "Powerdns" for product "Recursor"				>= 4.1.0 <= 4.1.8 Search vendor "Powerdns" for product "Recursor" and version " >= 4.1.0 <= 4.1.8"		-		Affected