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ID

VAR-202110-0631


CVE

CVE-2021-31353


TITLE

Juniper Networks Junos OS Security hole

Trust: 0.6

sources: CNNVD: CNNVD-202110-967

DESCRIPTION

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an attacker to inject a specific BGP update, causing the routing protocol daemon (RPD) to crash and restart, leading to a Denial of Service (DoS). Continued receipt and processing of the BGP update will create a sustained Denial of Service (DoS) condition. This issue affects very specific versions of Juniper Networks Junos OS: 19.3R3-S2; 19.4R3-S3; 20.2 versions 20.2R2-S3 and later, prior to 20.2R3-S2; 20.3 versions 20.3R2 and later, prior to 20.3R3; 20.4 versions 20.4R2 and later, prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS 20.1 is not affected by this issue. This issue also affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-S3-EVO, 20.4R3-EVO; 21.1-EVO versions prior to 21.1R2-EVO; 21.2-EVO versions prior to 21.2R2-EVO. The operating system provides a secure programming interface and Junos SDK. There is no relevant information about this vulnerability at present. Please pay attention to CNNVD or manufacturer announcements at any time

Trust: 1.08

sources: NVD: CVE-2021-31353 // VULHUB: VHN-391101 // VULMON: CVE-2021-31353

AFFECTED PRODUCTS

vendor:junipermodel:junosscope:eqversion:19.3

Trust: 1.0

vendor:junipermodel:junos os evolvedscope:eqversion:21.1

Trust: 1.0

vendor:junipermodel:junosscope:eqversion:19.4

Trust: 1.0

vendor:junipermodel:junosscope:eqversion:20.4

Trust: 1.0

vendor:junipermodel:junosscope:eqversion:20.3

Trust: 1.0

vendor:junipermodel:junosscope:eqversion:20.2

Trust: 1.0

vendor:junipermodel:junos os evolvedscope:lteversion:20.3

Trust: 1.0

vendor:junipermodel:junos os evolvedscope:eqversion:20.4

Trust: 1.0

vendor:junipermodel:junos os evolvedscope:eqversion:21.2

Trust: 1.0

vendor:junipermodel:junosscope:eqversion:21.1

Trust: 1.0

sources: NVD: CVE-2021-31353

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-31353
value: MEDIUM

Trust: 1.0

sirt@juniper.net: CVE-2021-31353
value: HIGH

Trust: 1.0

CNNVD: CNNVD-202110-967
value: HIGH

Trust: 0.6

VULHUB: VHN-391101
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-31353
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

VULHUB: VHN-391101
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: 0.1

sirt@juniper.net: CVE-2021-31353
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-391101 // CNNVD: CNNVD-202110-967 // NVD: CVE-2021-31353 // NVD: CVE-2021-31353

PROBLEMTYPE DATA

problemtype:CWE-755

Trust: 1.1

sources: VULHUB: VHN-391101 // NVD: CVE-2021-31353

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202110-967

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202110-967

PATCH

title:Juniper Networks Junos OS Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=166584

Trust: 0.6

sources: CNNVD: CNNVD-202110-967

EXTERNAL IDS

db:NVDid:CVE-2021-31353

Trust: 1.8

db:JUNIPERid:JSA11218

Trust: 1.8

db:CNNVDid:CNNVD-202110-967

Trust: 0.7

db:AUSCERTid:ESB-2021.3417

Trust: 0.6

db:CS-HELPid:SB2021101914

Trust: 0.6

db:VULHUBid:VHN-391101

Trust: 0.1

db:VULMONid:CVE-2021-31353

Trust: 0.1

sources: VULHUB: VHN-391101 // VULMON: CVE-2021-31353 // CNNVD: CNNVD-202110-967 // NVD: CVE-2021-31353

REFERENCES

url:https://kb.juniper.net/jsa11218

Trust: 1.8

url:https://www.cybersecurity-help.cz/vdb/sb2021101914

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2021.3417

Trust: 0.6

url:https://vigilance.fr/vulnerability/junos-os-multiple-vulnerabilities-36656

Trust: 0.6

url:https://nvd.nist.gov

Trust: 0.1

sources: VULHUB: VHN-391101 // VULMON: CVE-2021-31353 // CNNVD: CNNVD-202110-967 // NVD: CVE-2021-31353

SOURCES

db:VULHUBid:VHN-391101
db:VULMONid:CVE-2021-31353
db:CNNVDid:CNNVD-202110-967
db:NVDid:CVE-2021-31353

LAST UPDATE DATE

2024-08-14T15:22:08.926000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-391101date:2021-10-25T00:00:00
db:VULMONid:CVE-2021-31353date:2021-10-19T00:00:00
db:CNNVDid:CNNVD-202110-967date:2021-10-26T00:00:00
db:NVDid:CVE-2021-31353date:2021-10-25T21:41:46.123

SOURCES RELEASE DATE

db:VULHUBid:VHN-391101date:2021-10-19T00:00:00
db:VULMONid:CVE-2021-31353date:2021-10-19T00:00:00
db:CNNVDid:CNNVD-202110-967date:2021-10-13T00:00:00
db:NVDid:CVE-2021-31353date:2021-10-19T19:15:08.720