CVE-2019-3979

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

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

Details

Source: MITRE

Published: 2019-10-29

Updated: 2021-07-21

Type: CWE-20

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:* versions up to 6.44.5 (inclusive)

cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:* versions up to 6.45.6 (inclusive)

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
130432MikroTik RouterOS < 6.44.6 LTS or 6.45.x < 6.45.7 Multiple VulnerabilitiesNessusMisc.
high