Details of VAR-202107-0090

ID

VAR-202107-0090

CVE

CVE-2020-20250

TITLE

Mikrotik RouterOs In NULL Pointer dereference vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-009267

DESCRIPTION

Mikrotik RouterOs before stable version 6.47 suffers from a memory corruption vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). NOTE: this is different from CVE-2020-20253 and CVE-2020-20254. All four vulnerabilities in the /nova/bin/lcdstat process are discussed in the CVE-2020-20250 github.com/cq674350529 reference. This vulnerability is CVE-2020-20253 , CVE-2020-20254 Is a different vulnerability.Denial of service (DoS) It may be put into a state

Trust: 1.8

sources: NVD: CVE-2020-20250 // JVNDB: JVNDB-2021-009267 // VULHUB: VHN-173710 // VULMON: CVE-2020-20250

AFFECTED PRODUCTS

vendor:	mikrotik	model:	routeros	scope:	lt	version:	6.47	Trust: 1.0
vendor:	mikrotik	model:	routeros	scope:	eq	version:	6.47	Trust: 0.8
vendor:	mikrotik	model:	routeros	scope:	eq	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-009267 // NVD: CVE-2020-20250

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-20250
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2020-20250
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-202107-933
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-173710
value:	MEDIUM
Trust: 0.1
VULMON:	CVE-2020-20250
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2020-20250
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-173710
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-2020-20250
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-2020-20250
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-173710 // VULMON: CVE-2020-20250 // JVNDB: JVNDB-2021-009267 // CNNVD: CNNVD-202107-933 // NVD: CVE-2020-20250

PROBLEMTYPE DATA

problemtype:	CWE-476	Trust: 1.1
problemtype:	CWE-787	Trust: 1.1
problemtype:	NULL Pointer dereference (CWE-476) [NVD Evaluation ]	Trust: 0.8

sources: VULHUB: VHN-173710 // JVNDB: JVNDB-2021-009267 // NVD: CVE-2020-20250

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202107-933

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202107-933

PATCH

title:	Top Page	url:	https://mikrotik.com/	Trust: 0.8
title:	Mikrotik Routeros Remediation of resource management error vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=156626	Trust: 0.6

sources: JVNDB: JVNDB-2021-009267 // CNNVD: CNNVD-202107-933

EXTERNAL IDS

db:	NVD	id:	CVE-2020-20250	Trust: 3.4
db:	JVNDB	id:	JVNDB-2021-009267	Trust: 0.8
db:	CNNVD	id:	CNNVD-202107-933	Trust: 0.6
db:	VULHUB	id:	VHN-173710	Trust: 0.1
db:	VULMON	id:	CVE-2020-20250	Trust: 0.1

sources: VULHUB: VHN-173710 // VULMON: CVE-2020-20250 // JVNDB: JVNDB-2021-009267 // CNNVD: CNNVD-202107-933 // NVD: CVE-2020-20250

REFERENCES

url:	https://github.com/cq674350529/pocs_slides/blob/master/advisory/mikrotik/cve-2020-20250/readme.md	Trust: 2.6
url:	https://mikrotik.com/	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2020-20250	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/476.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULHUB: VHN-173710 // VULMON: CVE-2020-20250 // JVNDB: JVNDB-2021-009267 // CNNVD: CNNVD-202107-933 // NVD: CVE-2020-20250

SOURCES

db:	VULHUB	id:	VHN-173710
db:	VULMON	id:	CVE-2020-20250
db:	JVNDB	id:	JVNDB-2021-009267
db:	CNNVD	id:	CNNVD-202107-933
db:	NVD	id:	CVE-2020-20250

LAST UPDATE DATE

2024-08-14T14:31:41.790000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-173710	date:	2022-06-28T00:00:00
db:	VULMON	id:	CVE-2020-20250	date:	2021-07-15T00:00:00
db:	JVNDB	id:	JVNDB-2021-009267	date:	2022-04-19T08:04:00
db:	CNNVD	id:	CNNVD-202107-933	date:	2021-07-16T00:00:00
db:	NVD	id:	CVE-2020-20250	date:	2022-06-28T14:11:45.273

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-173710	date:	2021-07-13T00:00:00
db:	VULMON	id:	CVE-2020-20250	date:	2021-07-13T00:00:00
db:	JVNDB	id:	JVNDB-2021-009267	date:	2022-04-19T00:00:00
db:	CNNVD	id:	CNNVD-202107-933	date:	2021-07-13T00:00:00
db:	NVD	id:	CVE-2020-20250	date:	2021-07-13T12:15:09.307