Vulnerability identifier: #VU24070

Vulnerability risk: Low

CVSSv3.1: 3.1 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-476

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
MikroTik RouterOS
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: MikroTik

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in console process. A remote authenticated user can send a specially crafted packet and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MikroTik RouterOS: 6.44, 6.44.1, 6.44.2, 6.44.3, 6.44.4, 6.44.5

CPE

• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44.5:*:*:*:*::*:*
• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44.4:*:*:*:*::*:*
• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44.3:*:*:*:*::*:*
• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44.2:*:*:*:*::*:*
• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44.1:*:*:*:*::*:*
• cpe:2.3:h:mikrotik:mikrotik_routeros:6.44:*:*:*:*::*:*

External links
https://seclists.org/fulldisclosure/2020/Jan/12
https://mikrotik.com/download/changelogs/long-term-release-tree

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.