CVE Vulnerability

CVE-2020-20253

Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_lcdstat_4/README.md Broken Link Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14 Exploit Mailing List
Configurations

Configuration 1

cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:*
Information

Published : 2021-05-18 02:15

Updated : 2021-05-25 12:28

NVD link : CVE-2020-20253

Mitre link : CVE-2020-20253

Products Affected
No products.
CWE
CWE-369

Divide By Zero