PT-2021-10455 · Mikrotik · Mikrotik Routeros

Cq674350529 + 1 · Published 2021-05-18 · Updated 2022-05-03 · CVE-2020-20236

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 6.46.3

Description: The issue is related to a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.

Recommendations: For Mikrotik RouterOs version 6.46.3, at the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the sniffer process until a patch is available. Restrict access to the /nova/bin/sniffer process to minimize the risk of exploitation.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-20236

Affected Products

Mikrotik Routeros

References · 6

• 🔥 http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html · Exploit
• 🔥 http://seclists.org/fulldisclosure/2021/May/15 · Exploit
• https://osv.dev/vulnerability/CVE-2020-20236 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-20236 · Security Note
• https://t.me/cvenotify/14604 · Telegram Post
• https://mikrotik.com · Note