CVE-2019-3979

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below are vulnerable to a DNS unrelated data attack. The router adds all A records to its DNS cache even when the records are unrelated to the domain that was queried. Therefore, a remote attacker controlled DNS server can poison the router's DNS cache via malicious responses with additional and untrue records.

RouterOS versión 6.45.6 Stable, RouterOS versión 6.44.5 Long-Term y anteriores, son vulnerables a un ataque de datos no relacionado con DNS. El router agrega todos los registros A a su memoria caché DNS incluso cuando los registros no están relacionados con el dominio que se consultó. Por lo tanto, un servidor DNS controlado por un atacante remoto puede envenenar la memoria caché DNS del router mediante respuestas maliciosas con registros adicionales y falsos.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

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
2019-10-28 CVE Published
2023-03-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-345: Insufficient Verification of Data Authenticity

CAPEC

References (1)

URL	Tag	Source
https://www.tenable.com/security/research/tra-2019-46	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mikrotik Search vendor "Mikrotik"		Routeros Search vendor "Mikrotik" for product "Routeros"				<= 6.44.5 Search vendor "Mikrotik" for product "Routeros" and version " <= 6.44.5"		ltr		Affected
Mikrotik Search vendor "Mikrotik"		Routeros Search vendor "Mikrotik" for product "Routeros"				<= 6.45.6 Search vendor "Mikrotik" for product "Routeros" and version " <= 6.45.6"		-		Affected