PT-2021-10459 · Mikrotik · Routeros+1

Qian Chen · Published 2021-05-03 · Updated 2021-05-10 · CVE-2020-20247

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Mikrotik RouterOs versions prior to 6.46.5

Description: The issue is related to a memory corruption problem in the /nova/bin/traceroute process. An authenticated remote attacker can cause a Denial of Service by exploiting the loop counter variable.

Recommendations: For versions prior to 6.46.5, update to version 6.46.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the /nova/bin/traceroute process to minimize the risk of exploitation.

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-20247

Affected Products

Mikrotik Routeros

Routeros

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2020-20247 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20247 · Vendor Advisory
• https://seclists.org/fulldisclosure/2020/May/30 · Note