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ID

VAR-202112-2004


CVE

CVE-2021-35034


TITLE

Zyxel NBG6604  Firmware Session Expiration Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-017320

DESCRIPTION

An insufficient session expiration vulnerability in the CGI program of the Zyxel NBG6604 firmware could allow a remote attacker to access the device if the correct token can be intercepted. Zyxel NBG6604 A session expiration vulnerability exists in firmware.Information may be obtained and information may be tampered with. The Zyxel NBG6604 is a dual-band wireless router from China's Zyxel Technology (Zyxel). No detailed vulnerability details are currently provided

Trust: 2.25

sources: NVD: CVE-2021-35034 // JVNDB: JVNDB-2021-017320 // CNVD: CNVD-2022-01682 // VULMON: CVE-2021-35034

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-01682

AFFECTED PRODUCTS

vendor:zyxelmodel:nbg6604scope: - version: -

Trust: 1.4

vendor:zyxelmodel:nbg6604scope:ltversion:1.00\(abir.9\)c0

Trust: 1.0

vendor:zyxelmodel:nbg6604scope:eqversion:nbg6604 firmware

Trust: 0.8

vendor:zyxelmodel:nbg6604scope:eqversion: -

Trust: 0.8

sources: CNVD: CNVD-2022-01682 // JVNDB: JVNDB-2021-017320 // NVD: CVE-2021-35034

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-35034
value: CRITICAL

Trust: 1.0

security@zyxel.com.tw: CVE-2021-35034
value: HIGH

Trust: 1.0

NVD: CVE-2021-35034
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2022-01682
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202112-2760
value: CRITICAL

Trust: 0.6

VULMON: CVE-2021-35034
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-35034
severity: MEDIUM
baseScore: 6.4
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 4.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2022-01682
severity: HIGH
baseScore: 7.1
vectorString: AV:N/AC:H/AU:N/C:C/I:C/A:N
accessVector: NETWORK
accessComplexity: HIGH
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: NONE
exploitabilityScore: 4.9
impactScore: 9.2
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-35034
baseSeverity: CRITICAL
baseScore: 9.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 5.2
version: 3.1

Trust: 1.0

security@zyxel.com.tw: CVE-2021-35034
baseSeverity: HIGH
baseScore: 7.4
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 2.2
impactScore: 5.2
version: 3.1

Trust: 1.0

NVD: CVE-2021-35034
baseSeverity: CRITICAL
baseScore: 9.1
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-01682 // VULMON: CVE-2021-35034 // JVNDB: JVNDB-2021-017320 // CNNVD: CNNVD-202112-2760 // NVD: CVE-2021-35034 // NVD: CVE-2021-35034

PROBLEMTYPE DATA

problemtype:CWE-613

Trust: 1.0

problemtype:Inappropriate session deadline (CWE-613) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-017320 // NVD: CVE-2021-35034

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202112-2760

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202112-2760

PATCH

title:Zyxel security advisory for insufficient session expiration and cleartext storage of sensitive information vulnerabilities of NBG6604 home routerurl:https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-insufficient-session-expiration-and-cleartext-storage-of-sensitive-information-vulnerabilities-of-nbg6604-home-router

Trust: 0.8

title:Patch for Zyxel NBG6604 Access Control Error Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/312021

Trust: 0.6

title:Zyxel NBG6604 Fixes for code issue vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=176847

Trust: 0.6

sources: CNVD: CNVD-2022-01682 // JVNDB: JVNDB-2021-017320 // CNNVD: CNNVD-202112-2760

EXTERNAL IDS

db:NVDid:CVE-2021-35034

Trust: 3.9

db:JVNDBid:JVNDB-2021-017320

Trust: 0.8

db:CNVDid:CNVD-2022-01682

Trust: 0.6

db:CS-HELPid:SB2022010307

Trust: 0.6

db:CNNVDid:CNNVD-202112-2760

Trust: 0.6

db:VULMONid:CVE-2021-35034

Trust: 0.1

sources: CNVD: CNVD-2022-01682 // VULMON: CVE-2021-35034 // JVNDB: JVNDB-2021-017320 // CNNVD: CNNVD-202112-2760 // NVD: CVE-2021-35034

REFERENCES

url:https://www.zyxel.com/support/zyxel_security_advisory_for_sensitive_information_vulnerabilities_of_nbg6604_home_router.shtml

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2021-35034

Trust: 1.4

url:https://www.cybersecurity-help.cz/vdb/sb2022010307

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/613.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-01682 // VULMON: CVE-2021-35034 // JVNDB: JVNDB-2021-017320 // CNNVD: CNNVD-202112-2760 // NVD: CVE-2021-35034

SOURCES

db:CNVDid:CNVD-2022-01682
db:VULMONid:CVE-2021-35034
db:JVNDBid:JVNDB-2021-017320
db:CNNVDid:CNNVD-202112-2760
db:NVDid:CVE-2021-35034

LAST UPDATE DATE

2024-08-14T14:02:52.863000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-01682date:2022-01-07T00:00:00
db:VULMONid:CVE-2021-35034date:2022-01-07T00:00:00
db:JVNDBid:JVNDB-2021-017320date:2023-01-16T06:55:00
db:CNNVDid:CNNVD-202112-2760date:2022-01-10T00:00:00
db:NVDid:CVE-2021-35034date:2022-01-07T14:19:32.720

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-01682date:2021-12-31T00:00:00
db:VULMONid:CVE-2021-35034date:2021-12-29T00:00:00
db:JVNDBid:JVNDB-2021-017320date:2023-01-16T00:00:00
db:CNNVDid:CNNVD-202112-2760date:2021-12-29T00:00:00
db:NVDid:CVE-2021-35034date:2021-12-29T13:15:07.803