MikroTik RouterOS Unauthenticated Intermediary

high Nessus Plugin ID 123797
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The remote networking device is affected by an unauthenticated intermediary vulnerability.


The remote networking device is running a version of MikroTik RouterOS vulnerable to an unauthenticated intermediary vulnerability.
Therefore, an unauthenticated remote attacker could use the MikroTik router to proxy arbitrary traffic or bypass the router's firewall.


Upgrade to MikroTik RouterOS 6.42.12 / 6.43.12 or later.

See Also


Plugin Details

Severity: High

ID: 123797

File Name: mikrotik_cve_2019-3924.nasl

Version: 1.2

Type: remote

Family: Misc.

Published: 4/8/2019

Updated: 4/10/2019

Dependencies: mikrotik_winbox_detect.nasl

Risk Information

CVSS Score Source: CVE-2019-3924


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

Temporal Vector: E:POC/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:mikrotik:routeros

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/12/2019

Vulnerability Publication Date: 2/12/2019

Reference Information

CVE: CVE-2019-3924