// For flags

CVE-2018-14644

 

Severity Score

5.9
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.

Se ha encontrado un problema en PowerDNS Recursor desde la versión 4.0.0 hasta la versión 4.1.4 inclusive. Un atacante remoto que envía una consulta DNS para un metatipo como OPT puede provocar que una zona se almacene en caché erróneamente como validación de DNSSEC fallida. Solo surge si la zona padre está firmada y todos los servidores autorizados para esa zona padre responden con FORMERR a una consulta de al menos uno de los metatipos. Como resultado, las consultas posteriores de los clientes que solicitan la validación de DNSSEC se responderán con un ServFail.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-07-27 CVE Reserved
  • 2018-11-09 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
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"
 >= 4.0.0 <= 4.1.4
Search vendor "Powerdns" for product "Recursor" and version " >= 4.0.0 <= 4.1.4"
-
Affected