PT-2021-10446 · Mikrotik · Mikrotik Routeros

Qian Chen · Published 2021-05-03 · Updated 2022-05-03 · CVE-2020-20218

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 version 6.44.6

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 Mikrotik RouterOs version 6.44.6, as a temporary workaround, consider restricting access to the /nova/bin/traceroute process until a patch is available. Avoid using the loop counter variable in the affected process to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-20218

Affected Products

Mikrotik Routeros

References · 4

• 🔥 https://seclists.org/fulldisclosure/2021/May/1 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-20218 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20218 · Vendor Advisory
• https://seclists.org/fulldisclosure/2020/May/30 · Note