PT-2021-10449 · Mikrotik · Routeros+1

Qian Chen · Published 2021-07-21 · Updated 2022-10-26 · CVE-2020-20221

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: Mikrotik RouterOs versions prior to 6.44.6

Description: The issue is related to an uncontrolled resource consumption in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the system's CPU.

Recommendations: For versions prior to 6.44.6, update to version 6.44.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the /nova/bin/cerm process to minimize the risk of exploitation.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2020-20221

Affected Products

Mikrotik Routeros

Routeros

References · 6

• 🔥 https://seclists.org/fulldisclosure/2021/May/1 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-20221 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20221 · Vendor Advisory
• https://seclists.org/fulldisclosure/2020/May/30 · Note
• https://t.me/cvenotify/18350 · Telegram Post
• https://cwe.mitre.org/data/definitions/400.html · Note