PT-2020-6606 · Mikrotik · Routeros+1

Published 2020-07-10 · Updated 2022-07-12 · CVE-2020-22844

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Mikrotik RouterOS version 6.47

Description A buffer overflow in the operating system allows unauthenticated attackers to cause a denial of service via crafted SMB requests. The issue is related to an operation exceeding the buffer boundaries in memory, which can be exploited by a remote attacker to disrupt service using a specially crafted SMB request.

Recommendations For Mikrotik RouterOS version 6.47, consider disabling SMB requests until a patch is available to prevent potential denial of service attacks. Restrict access to the vulnerable component 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

Buffer Overflow

Memory Leak

Weakness Enumeration

CWE-119

CWE-401

Related Identifiers

BDU:2022-01048

CVE-2020-22844

Affected Products

Mikrotik Routeros

Routeros

References · 7

• 🔥 https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.md · Exploit
• https://mikrotik.com/support · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01048 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-22844 · Security Note
• https://osv.dev/vulnerability/CVE-2020-22844 · Vendor Advisory
• https://t.me/cibsecurity/38203 · Telegram Post
• https://forum.mikrotik.com/viewtopic.php?t=163482 · Note