CVE-2019-3979 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://www.tenable.com/security/research/tra-2019-46

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5