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ID

VAR-202107-0087


CVE

CVE-2020-20231


TITLE

Mikrotik RouterOs  Out-of-bounds Vulnerability in Microsoft

Trust: 0.8

sources: JVNDB: JVNDB-2021-009636

DESCRIPTION

Mikrotik RouterOs through stable version 6.48.3 suffers from a memory corruption vulnerability in the /nova/bin/detnet process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). 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

Trust: 1.8

sources: NVD: CVE-2020-20231 // JVNDB: JVNDB-2021-009636 // VULHUB: VHN-173689 // VULMON: CVE-2020-20231

AFFECTED PRODUCTS

vendor:mikrotikmodel:routerosscope:gteversion:6.44.6

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vendor:mikrotikmodel:routerosscope:lteversion:6.48.3

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vendor:mikrotikmodel:routerosscope: - version: -

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vendor:mikrotikmodel:routerosscope:lteversion:6.48.3 until

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vendor:mikrotikmodel:routerosscope:eqversion: -

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sources: JVNDB: JVNDB-2021-009636 // NVD: CVE-2020-20231

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-20231
value: MEDIUM

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NVD: CVE-2020-20231
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202107-1020
value: MEDIUM

Trust: 0.6

VULHUB: VHN-173689
value: MEDIUM

Trust: 0.1

VULMON: CVE-2020-20231
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2020-20231
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-173689
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-2020-20231
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-2020-20231
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-173689 // VULMON: CVE-2020-20231 // JVNDB: JVNDB-2021-009636 // CNNVD: CNNVD-202107-1020 // NVD: CVE-2020-20231

PROBLEMTYPE DATA

problemtype:CWE-476

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problemtype:CWE-787

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problemtype:NULL Pointer dereference (CWE-476) [NVD Evaluation ]

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problemtype: Out-of-bounds writing (CWE-787) [NVD Evaluation ]

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sources: VULHUB: VHN-173689 // JVNDB: JVNDB-2021-009636 // NVD: CVE-2020-20231

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202107-1020

TYPE

code problem

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sources: CNNVD: CNNVD-202107-1020

PATCH

title:Top Pageurl:https://mikrotik.com/

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sources: JVNDB: JVNDB-2021-009636

EXTERNAL IDS

db:NVDid:CVE-2020-20231

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db:JVNDBid:JVNDB-2021-009636

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db:CNNVDid:CNNVD-202107-1020

Trust: 0.7

db:VULHUBid:VHN-173689

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db:VULMONid:CVE-2020-20231

Trust: 0.1

sources: VULHUB: VHN-173689 // VULMON: CVE-2020-20231 // JVNDB: JVNDB-2021-009636 // CNNVD: CNNVD-202107-1020 // NVD: CVE-2020-20231

REFERENCES

url:https://github.com/cq674350529/pocs_slides/blob/master/advisory/mikrotik/cve-2020-20231/readme.md

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url:https://mikrotik.com/

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url:https://nvd.nist.gov/vuln/detail/cve-2020-20231

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url:https://cwe.mitre.org/data/definitions/787.html

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url:https://cwe.mitre.org/data/definitions/476.html

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url:https://nvd.nist.gov

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sources: VULHUB: VHN-173689 // VULMON: CVE-2020-20231 // JVNDB: JVNDB-2021-009636 // CNNVD: CNNVD-202107-1020 // NVD: CVE-2020-20231

SOURCES

db:VULHUBid:VHN-173689
db:VULMONid:CVE-2020-20231
db:JVNDBid:JVNDB-2021-009636
db:CNNVDid:CNNVD-202107-1020
db:NVDid:CVE-2020-20231

LAST UPDATE DATE

2024-08-14T14:44:23.572000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-173689date:2021-07-20T00:00:00
db:VULMONid:CVE-2020-20231date:2021-07-20T00:00:00
db:JVNDBid:JVNDB-2021-009636date:2022-05-16T07:09:00
db:CNNVDid:CNNVD-202107-1020date:2021-07-21T00:00:00
db:NVDid:CVE-2020-20231date:2021-07-20T23:32:19.287

SOURCES RELEASE DATE

db:VULHUBid:VHN-173689date:2021-07-14T00:00:00
db:VULMONid:CVE-2020-20231date:2021-07-14T00:00:00
db:JVNDBid:JVNDB-2021-009636date:2022-05-16T00:00:00
db:CNNVDid:CNNVD-202107-1020date:2021-07-14T00:00:00
db:NVDid:CVE-2020-20231date:2021-07-14T14:15:08.073