Details of VAR-202105-0098

ID

VAR-202105-0098

CVE

CVE-2020-20267

TITLE

Mikrotik RouterOs Buffer Error Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-006802

DESCRIPTION

Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/resolver process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access. Mikrotik RouterOs Is vulnerable to a buffer error.Denial of service (DoS) It may be put into a state. MikroTik RouterOS is a Linux-based router operating system developed by Latvian MikroTik Company. The system can be deployed in a PC so that it provides router functionality. Mikrotik RouterOs prior to version 6.47 has a security vulnerability

Trust: 1.8

sources: NVD: CVE-2020-20267 // JVNDB: JVNDB-2021-006802 // VULHUB: VHN-173728 // VULMON: CVE-2020-20267

AFFECTED PRODUCTS

vendor:	mikrotik	model:	routeros	scope:	lt	version:	6.47	Trust: 1.0
vendor:	mikrotik	model:	routeros	scope:	eq	version:	-	Trust: 0.8
vendor:	mikrotik	model:	routeros	scope:	eq	version:	6.47 (stable tree)	Trust: 0.8

sources: JVNDB: JVNDB-2021-006802 // NVD: CVE-2020-20267

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-20267
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2020-20267
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-202105-695
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-173728
value:	MEDIUM
Trust: 0.1
VULMON:	CVE-2020-20267
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2020-20267
severity:	MEDIUM
baseScore:	4.0
vectorString:	AV:N/AC:L/AU:S/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	8.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
VULHUB:	VHN-173728
severity:	MEDIUM
baseScore:	4.0
vectorString:	AV:N/AC:L/AU:S/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	8.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2020-20267
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2020-20267
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULHUB: VHN-173728 // VULMON: CVE-2020-20267 // JVNDB: JVNDB-2021-006802 // CNNVD: CNNVD-202105-695 // NVD: CVE-2020-20267

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.1
problemtype:	Buffer error (CWE-119) [NVD Evaluation ]	Trust: 0.8
problemtype:	CWE-119	Trust: 0.1

sources: VULHUB: VHN-173728 // JVNDB: JVNDB-2021-006802 // NVD: CVE-2020-20267

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-695

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202105-695

PATCH

title:	Stable release tree	url:	https://mikrotik.com/download/changelogs/stable-release-tree	Trust: 0.8
title:	Mikrotik RouterOs Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=151262	Trust: 0.6

sources: JVNDB: JVNDB-2021-006802 // CNNVD: CNNVD-202105-695

EXTERNAL IDS

db:	NVD	id:	CVE-2020-20267	Trust: 3.4
db:	JVNDB	id:	JVNDB-2021-006802	Trust: 0.8
db:	CNNVD	id:	CNNVD-202105-695	Trust: 0.7
db:	VULHUB	id:	VHN-173728	Trust: 0.1
db:	VULMON	id:	CVE-2020-20267	Trust: 0.1

sources: VULHUB: VHN-173728 // VULMON: CVE-2020-20267 // JVNDB: JVNDB-2021-006802 // CNNVD: CNNVD-202105-695 // NVD: CVE-2020-20267

REFERENCES

url:	http://seclists.org/fulldisclosure/2021/may/12	Trust: 2.7
url:	https://nvd.nist.gov/vuln/detail/cve-2020-20267	Trust: 1.4
url:	https://cwe.mitre.org/data/definitions/119.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULHUB: VHN-173728 // VULMON: CVE-2020-20267 // JVNDB: JVNDB-2021-006802 // CNNVD: CNNVD-202105-695 // NVD: CVE-2020-20267

SOURCES

db:	VULHUB	id:	VHN-173728
db:	VULMON	id:	CVE-2020-20267
db:	JVNDB	id:	JVNDB-2021-006802
db:	CNNVD	id:	CNNVD-202105-695
db:	NVD	id:	CVE-2020-20267

LAST UPDATE DATE

2024-08-14T14:50:16.411000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-173728	date:	2022-06-28T00:00:00
db:	VULMON	id:	CVE-2020-20267	date:	2021-05-19T00:00:00
db:	JVNDB	id:	JVNDB-2021-006802	date:	2022-01-20T07:59:00
db:	CNNVD	id:	CNNVD-202105-695	date:	2021-05-20T00:00:00
db:	NVD	id:	CVE-2020-20267	date:	2022-06-28T14:11:45.273

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-173728	date:	2021-05-11T00:00:00
db:	VULMON	id:	CVE-2020-20267	date:	2021-05-11T00:00:00
db:	JVNDB	id:	JVNDB-2021-006802	date:	2022-01-20T00:00:00
db:	CNNVD	id:	CNNVD-202105-695	date:	2021-05-11T00:00:00
db:	NVD	id:	CVE-2020-20267	date:	2021-05-11T15:15:07.787