SB2019022501 - Denial of service in MikroTik RouterOS



SB2019022501 - Denial of service in MikroTik RouterOS

Published: February 25, 2019

Security Bulletin ID SB2019022501
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Input validation error (CVE-ID: CVE-2019-3924)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green


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

The vulnerability exists due to insufficient validation of user-supplied input within the Winbox service. A remote attacker can send a specially crafted request to the affected service and trigger denial of service conditions.

Successful exploitation of the vulnerability requires that the Winbox service is exposed to the attacker.


Remediation

Install update from vendor's website.