Details of VAR-202008-0830

ID

VAR-202008-0830

CVE

CVE-2020-3496

TITLE

Cisco Small Business Smart and Managed Switch Input verification vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-010444

DESCRIPTION

A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected

Trust: 2.16

sources: NVD: CVE-2020-3496 // JVNDB: JVNDB-2020-010444 // CNVD: CNVD-2020-48989

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-48989

AFFECTED PRODUCTS

vendor:	cisco	model:	sg200-26fp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf350-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-10p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-26p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-28mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-52mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-26hp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-50p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf200-24fp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10mpp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-10p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf500-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf350-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-48mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf302-08mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350xg-2f10	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-24f	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-48mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-28p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-50p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10sfp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf500-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-50hp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf500-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf200-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250x-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500x-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf250-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-24mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf200-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf350-48mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-24pp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-28	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-28p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-52	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-52p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-48pp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-52mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500x-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-50	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-18	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-10fp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg355-10p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-12f	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-24mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-10mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-50	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf200-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350xg-24t	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-08	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-52	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350xg-24f	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-18	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-08	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250x-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-50fp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf302-08	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10pp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-28	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-26	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-16ft	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-26p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf500-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf302-08mpp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-08hp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-24ft	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-52p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-28mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf200-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf250-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-10	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-28pp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350xg-48t	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-24mpp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500-28mpp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-28	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-26	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250x-48p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg250-08	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-08p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-20	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg300-10	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500x-48	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf302-08pp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg500xg-8f8t	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf250-48hp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf302-08p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf550x-24mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg550x-24p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350x-48mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sx550x-52	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf250-24	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg350-28p	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sf300-24mp	scope:	lte	version:	2.5.5.47	Trust: 1.0
vendor:	cisco	model:	sg200-08	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-08p	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-10fp	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-18	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-26	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-26fp	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-26p	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-50	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-50fp	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	sg200-50p	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	small business smart and managed switches	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2020-48989 // JVNDB: JVNDB-2020-010444 // NVD: CVE-2020-3496

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-3496
value:	MEDIUM
Trust: 1.0
ykramarz@cisco.com:	CVE-2020-3496
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2020-010444
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-48989
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202008-979
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2020-3496
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2020-010444
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2020-48989
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2020-3496
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	3.9
impactScore:	1.4
version:	3.1
Trust: 1.0
ykramarz@cisco.com:	CVE-2020-3496
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	3.9
impactScore:	1.4
version:	3.0
Trust: 1.0
NVD:	JVNDB-2020-010444
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2020-48989 // JVNDB: JVNDB-2020-010444 // CNNVD: CNNVD-202008-979 // NVD: CVE-2020-3496 // NVD: CVE-2020-3496

PROBLEMTYPE DATA

problemtype:

CWE-20

Trust: 1.8

sources: JVNDB: JVNDB-2020-010444 // NVD: CVE-2020-3496

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202008-979

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202008-979

CONFIGURATIONS

sources: JVNDB: JVNDB-2020-010444

PATCH

title:	cisco-sa-sbss-ipv6-dos-tsgqbffW	url:	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-tsgqbffW	Trust: 0.8
title:	Patch for Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/232054	Trust: 0.6

sources: CNVD: CNVD-2020-48989 // JVNDB: JVNDB-2020-010444

EXTERNAL IDS

db:	NVD	id:	CVE-2020-3496	Trust: 3.0
db:	JVNDB	id:	JVNDB-2020-010444	Trust: 0.8
db:	CNVD	id:	CNVD-2020-48989	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.2859	Trust: 0.6
db:	NSFOCUS	id:	48759	Trust: 0.6
db:	CNNVD	id:	CNNVD-202008-979	Trust: 0.6

sources: CNVD: CNVD-2020-48989 // JVNDB: JVNDB-2020-010444 // CNNVD: CNNVD-202008-979 // NVD: CVE-2020-3496

REFERENCES

url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-sbss-ipv6-dos-tsgqbffw	Trust: 2.8
url:	https://nvd.nist.gov/vuln/detail/cve-2020-3496	Trust: 1.4
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-3496	Trust: 0.8
url:	http://www.nsfocus.net/vulndb/48759	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.2859/	Trust: 0.6

sources: CNVD: CNVD-2020-48989 // JVNDB: JVNDB-2020-010444 // CNNVD: CNNVD-202008-979 // NVD: CVE-2020-3496

SOURCES

db:	CNVD	id:	CNVD-2020-48989
db:	JVNDB	id:	JVNDB-2020-010444
db:	CNNVD	id:	CNNVD-202008-979
db:	NVD	id:	CVE-2020-3496

LAST UPDATE DATE

2024-11-23T22:25:23.409000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-48989	date:	2020-08-28T00:00:00
db:	JVNDB	id:	JVNDB-2020-010444	date:	2021-01-18T07:48:14
db:	CNNVD	id:	CNNVD-202008-979	date:	2021-01-05T00:00:00
db:	NVD	id:	CVE-2020-3496	date:	2024-11-21T05:31:11.363

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-48989	date:	2020-08-28T00:00:00
db:	JVNDB	id:	JVNDB-2020-010444	date:	2021-01-18T07:48:14
db:	CNNVD	id:	CNNVD-202008-979	date:	2020-08-19T00:00:00
db:	NVD	id:	CVE-2020-3496	date:	2020-08-26T17:15:14.210