Details of VAR-202202-0326

ID

VAR-202202-0326

CVE

CVE-2022-20702

TITLE

plural Cisco Small Business RV Series router out-of-bounds write vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2022-004938

DESCRIPTION

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows local attackers to escalate privileges on affected installations of Cisco RV340 routers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the utility-ping-request script. The issue results from the creation of a temporary file with insecure permissions. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root

Trust: 2.34

sources: NVD: CVE-2022-20702 // JVNDB: JVNDB-2022-004938 // ZDI: ZDI-22-420 // VULMON: CVE-2022-20702

AFFECTED PRODUCTS

vendor:	cisco	model:	rv160	scope:	lte	version:	1.0.01.05	Trust: 1.0
vendor:	cisco	model:	rv345p	scope:	lte	version:	1.0.03.24	Trust: 1.0
vendor:	cisco	model:	rv260	scope:	lte	version:	1.0.01.05	Trust: 1.0
vendor:	cisco	model:	rv340w	scope:	lte	version:	1.0.03.24	Trust: 1.0
vendor:	cisco	model:	rv345	scope:	lte	version:	1.0.03.24	Trust: 1.0
vendor:	cisco	model:	rv160w	scope:	lte	version:	1.0.01.05	Trust: 1.0
vendor:	cisco	model:	rv260w	scope:	lte	version:	1.0.01.05	Trust: 1.0
vendor:	cisco	model:	rv260p	scope:	lte	version:	1.0.01.05	Trust: 1.0
vendor:	cisco	model:	rv340	scope:	lte	version:	1.0.03.24	Trust: 1.0
vendor:	シスコシステムズ	model:	rv260 vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv260p vpn router with poe	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv260w wireless-ac vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv160w wireless-ac vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv160 vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv345p dual wan gigabit poe vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv340 dual wan gigabit vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv340w dual wan gigabit wireless-ac vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	rv345 dual wan gigabit vpn router	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	rv340	scope:	-	version:	-	Trust: 0.7

sources: ZDI: ZDI-22-420 // JVNDB: JVNDB-2022-004938 // NVD: CVE-2022-20702

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-20702
value:	HIGH
Trust: 1.0
ykramarz@cisco.com:	CVE-2022-20702
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2022-20702
value:	HIGH
Trust: 0.8
ZDI:	CVE-2022-20702
value:	CRITICAL
Trust: 0.7
CNNVD:	CNNVD-202202-163
value:	HIGH
Trust: 0.6
VULMON:	CVE-2022-20702
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2022-20702
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9

nvd@nist.gov:	CVE-2022-20702
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.2
impactScore:	5.9
version:	3.1
Trust: 1.0
ykramarz@cisco.com:	CVE-2022-20702
baseSeverity:	CRITICAL
baseScore:	10.0
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	6.0
version:	3.1
Trust: 1.0
NVD:	CVE-2022-20702
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8
ZDI:	CVE-2022-20702
baseSeverity:	CRITICAL
baseScore:	7.0
vectorString:	AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	LOCAL
attackComplexity:	HIGH
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.0
impactScore:	5.9
version:	3.0
Trust: 0.7

sources: ZDI: ZDI-22-420 // VULMON: CVE-2022-20702 // JVNDB: JVNDB-2022-004938 // CNNVD: CNNVD-202202-163 // NVD: CVE-2022-20702 // NVD: CVE-2022-20702

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2022-004938 // NVD: CVE-2022-20702

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-163

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-163

PATCH

title:	cisco-sa-smb-mult-vuln-KA9PK6D	url:	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D	Trust: 0.8
title:	Cisco has issued an update to correct this vulnerability.	url:	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D	Trust: 0.7
title:	Cisco Small Business Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=183841	Trust: 0.6
title:	Cisco: Cisco Small Business RV Series Routers Vulnerabilities	url:	https://vulmon.com/vendoradvisory?qidtp=cisco_security_advisories_and_alerts_ciscoproducts&qid=cisco-sa-smb-mult-vuln-KA9PK6D	Trust: 0.1
title:	CVE-2022-XXXX	url:	https://github.com/AlphabugX/CVE-2022-23305	Trust: 0.1
title:	CVE-2022-XXXX	url:	https://github.com/AlphabugX/CVE-2022-RCE	Trust: 0.1

sources: ZDI: ZDI-22-420 // VULMON: CVE-2022-20702 // JVNDB: JVNDB-2022-004938 // CNNVD: CNNVD-202202-163

EXTERNAL IDS

db:	NVD	id:	CVE-2022-20702	Trust: 4.0
db:	ZDI	id:	ZDI-22-420	Trust: 2.4
db:	JVNDB	id:	JVNDB-2022-004938	Trust: 0.8
db:	ZDI_CAN	id:	ZDI-CAN-15946	Trust: 0.7
db:	CS-HELP	id:	SB2022020301	Trust: 0.6
db:	CNNVD	id:	CNNVD-202202-163	Trust: 0.6
db:	VULMON	id:	CVE-2022-20702	Trust: 0.1

sources: ZDI: ZDI-22-420 // VULMON: CVE-2022-20702 // JVNDB: JVNDB-2022-004938 // CNNVD: CNNVD-202202-163 // NVD: CVE-2022-20702

REFERENCES

url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-smb-mult-vuln-ka9pk6d	Trust: 2.4
url:	https://www.zerodayinitiative.com/advisories/zdi-22-420/	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2022-20702	Trust: 1.4
url:	https://www.cybersecurity-help.cz/vdb/sb2022020301	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/787.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://github.com/alphabugx/cve-2022-23305	Trust: 0.1

sources: ZDI: ZDI-22-420 // VULMON: CVE-2022-20702 // JVNDB: JVNDB-2022-004938 // CNNVD: CNNVD-202202-163 // NVD: CVE-2022-20702

CREDITS

Jeongun Baek of Diffense

Trust: 1.3

sources: ZDI: ZDI-22-420 // CNNVD: CNNVD-202202-163

SOURCES

db:	ZDI	id:	ZDI-22-420
db:	VULMON	id:	CVE-2022-20702
db:	JVNDB	id:	JVNDB-2022-004938
db:	CNNVD	id:	CNNVD-202202-163
db:	NVD	id:	CVE-2022-20702

LAST UPDATE DATE

2024-08-14T13:53:35.891000+00:00

SOURCES UPDATE DATE

db:	ZDI	id:	ZDI-22-420	date:	2022-02-22T00:00:00
db:	VULMON	id:	CVE-2022-20702	date:	2023-11-07T00:00:00
db:	JVNDB	id:	JVNDB-2022-004938	date:	2023-05-11T09:08:00
db:	CNNVD	id:	CNNVD-202202-163	date:	2022-02-28T00:00:00
db:	NVD	id:	CVE-2022-20702	date:	2023-11-07T03:42:40.140

SOURCES RELEASE DATE

db:	ZDI	id:	ZDI-22-420	date:	2022-02-22T00:00:00
db:	VULMON	id:	CVE-2022-20702	date:	2022-02-10T00:00:00
db:	JVNDB	id:	JVNDB-2022-004938	date:	2023-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202202-163	date:	2022-02-03T00:00:00
db:	NVD	id:	CVE-2022-20702	date:	2022-02-10T18:15:09.137