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ID

VAR-202009-1161


CVE

CVE-2020-3477


TITLE

Cisco IOS and Cisco IOS XE Input validation error vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202009-1402

DESCRIPTION

A vulnerability in the CLI parser of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to access files from the flash: filesystem. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain read-only access to files that are located on the flash: filesystem that otherwise might not have been accessible

Trust: 0.99

sources: NVD: CVE-2020-3477 // VULMON: CVE-2020-3477

AFFECTED PRODUCTS

vendor:ciscomodel:iosscope:eqversion:16.3.11

Trust: 1.0

sources: NVD: CVE-2020-3477

CVSS

SEVERITY

CVSSV2

CVSSV3

NVD: CVE-2020-3477
value: MEDIUM

Trust: 1.0

CNNVD: CNNVD-202009-1402
value: MEDIUM

Trust: 0.6

VULMON: CVE-2020-3477
value: LOW

Trust: 0.1

VULMON: CVE-2020-3477
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

NVD: CVE-2020-3477
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 1.8
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: VULMON: CVE-2020-3477 // CNNVD: CNNVD-202009-1402 // NVD: CVE-2020-3477

PROBLEMTYPE DATA

problemtype:CWE-863

Trust: 1.0

sources: NVD: CVE-2020-3477

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202009-1402

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202009-1402

CONFIGURATIONS

sources:
            
            
            NVD: CVE-2020-3477

PATCH
title:Cisco IOS  and Cisco IOS XE Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=129065
Trust: 0.6
title:Cisco: Cisco IOS and IOS XE Software Information Disclosure Vulnerabilityurl:https://vulmon.com/vendoradvisory?qidtp=cisco_security_advisories_and_alerts_ciscoproducts&qid=cisco-sa-info-disclosure-v4bmjbnf
Trust: 0.1
title:CVE-2020-3477url:https://github.com/alaial90/cve-2020-3477 
Trust: 0.1
sources:
            
            
            VULMON: CVE-2020-3477 // 
            
            
            
            CNNVD: CNNVD-202009-1402

EXTERNAL IDS
db:NVDid:CVE-2020-3477
Trust: 1.7
db:AUSCERTid:ESB-2020.3277
Trust: 0.6
db:NSFOCUSid:49353
Trust: 0.6
db:CNNVDid:CNNVD-202009-1402
Trust: 0.6
db:VULMONid:CVE-2020-3477
Trust: 0.1
sources:
            
            
            VULMON: CVE-2020-3477 // 
            
            
            
            CNNVD: CNNVD-202009-1402 // 
            
            
            
            NVD: CVE-2020-3477

REFERENCES
url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-info-disclosure-v4bmjbnf
Trust: 2.4
url:https://vigilance.fr/vulnerability/cisco-ios-ios-xe-multiple-vulnerabilities-33416
Trust: 0.6
url:https://nvd.nist.gov/vuln/detail/cve-2020-3477
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2020.3277/
Trust: 0.6
url:http://www.nsfocus.net/vulndb/49353
Trust: 0.6
url:https://cwe.mitre.org/data/definitions/863.html
Trust: 0.1
url:https://github.com/alaial90/cve-2020-3477
Trust: 0.1
url:https://nvd.nist.gov
Trust: 0.1
sources:
            
            
            VULMON: CVE-2020-3477 // 
            
            
            
            CNNVD: CNNVD-202009-1402 // 
            
            
            
            NVD: CVE-2020-3477

SOURCES
db:VULMONid:CVE-2020-3477
db:CNNVDid:CNNVD-202009-1402
db:NVDid:CVE-2020-3477

LAST UPDATE DATE
2022-05-04T09:02:29.586000+00:00

SOURCES UPDATE DATE
db:VULMONid:CVE-2020-3477date:2021-08-06T00:00:00
db:CNNVDid:CNNVD-202009-1402date:2021-08-09T00:00:00
db:NVDid:CVE-2020-3477date:2021-08-06T19:05:00

SOURCES RELEASE DATE
db:VULMONid:CVE-2020-3477date:2020-09-24T00:00:00
db:CNNVDid:CNNVD-202009-1402date:2020-09-24T00:00:00
db:NVDid:CVE-2020-3477date:2020-09-24T18:15:00