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ID

VAR-202101-1887


CVE

CVE-2021-0208


TITLE

Juniper Networks Junos OS  Input confirmation vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-002496

DESCRIPTION

An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-EVO. Juniper Networks Junos OS Is vulnerable to input validation.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Juniper Networks Junos OS is a set of network operating system of Juniper Networks (Juniper Networks) dedicated to the company's hardware equipment. The operating system provides a secure programming interface and Junos SDK

Trust: 1.71

sources: NVD: CVE-2021-0208 // JVNDB: JVNDB-2021-002496 // VULHUB: VHN-372110

AFFECTED PRODUCTS

vendor:junipermodel:junosscope:eqversion:15.1x49

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vendor:junipermodel:junosscope:eqversion:19.2

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vendor:junipermodel:junosscope:eqversion:20.1

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vendor:junipermodel:junosscope:eqversion:18.2

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vendor:junipermodel:junos os evolvedscope:eqversion:20.1

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vendor:junipermodel:junosscope:eqversion:18.3

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vendor:junipermodel:junosscope:eqversion:18.4

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vendor:junipermodel:junosscope:eqversion:19.3

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vendor:junipermodel:junosscope:eqversion:17.3

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vendor:junipermodel:junosscope:eqversion:19.1

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vendor:junipermodel:junosscope:eqversion:19.4

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vendor:junipermodel:junosscope:eqversion:17.4

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vendor:junipermodel:junos os evolvedscope:eqversion:19.3

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vendor:junipermodel:junos os evolvedscope:eqversion:19.4

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vendor:junipermodel:junosscope:eqversion:18.1

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vendor:ジュニパーネットワークスmodel:junos osscope:eqversion: -

Trust: 0.8

vendor:ジュニパーネットワークスmodel:junos osscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2021-002496 // NVD: CVE-2021-0208

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-0208
value: LOW

Trust: 1.0

sirt@juniper.net: CVE-2021-0208
value: HIGH

Trust: 1.0

NVD: CVE-2021-0208
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202101-1110
value: HIGH

Trust: 0.6

VULHUB: VHN-372110
value: LOW

Trust: 0.1

nvd@nist.gov: CVE-2021-0208
severity: LOW
baseScore: 3.3
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 6.5
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-372110
severity: LOW
baseScore: 3.3
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 6.5
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

sirt@juniper.net: CVE-2021-0208
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

OTHER: JVNDB-2021-002496
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-372110 // JVNDB: JVNDB-2021-002496 // CNNVD: CNNVD-202101-1110 // NVD: CVE-2021-0208 // NVD: CVE-2021-0208

PROBLEMTYPE DATA

problemtype:CWE-20

Trust: 1.1

problemtype:Incorrect input confirmation (CWE-20) [NVD Evaluation ]

Trust: 0.8

sources: VULHUB: VHN-372110 // JVNDB: JVNDB-2021-002496 // NVD: CVE-2021-0208

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202101-1110

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202101-1110

PATCH

title:JSA11098url:https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html

Trust: 0.8

title:Juniper Networks Junos OS Enter the fix for the verification error vulnerabilityurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=139552

Trust: 0.6

sources: JVNDB: JVNDB-2021-002496 // CNNVD: CNNVD-202101-1110

EXTERNAL IDS

db:NVDid:CVE-2021-0208

Trust: 2.5

db:JUNIPERid:JSA11098

Trust: 1.7

db:JVNDBid:JVNDB-2021-002496

Trust: 0.8

db:CNNVDid:CNNVD-202101-1110

Trust: 0.7

db:AUSCERTid:ESB-2021.0176

Trust: 0.6

db:VULHUBid:VHN-372110

Trust: 0.1

sources: VULHUB: VHN-372110 // JVNDB: JVNDB-2021-002496 // CNNVD: CNNVD-202101-1110 // NVD: CVE-2021-0208

REFERENCES

url:https://kb.juniper.net/jsa11098

Trust: 1.7

url:https://www.juniper.net/documentation/en_us/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html

Trust: 1.7

url:https://www.juniper.net/documentation/en_us/junos/topics/reference/configuration-statement/disable-edit-protocols-rsvp.html

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url:https://nvd.nist.gov/vuln/detail/cve-2021-0208

Trust: 1.4

url:https://www.auscert.org.au/bulletins/esb-2021.0176/

Trust: 0.6

url:https://vigilance.fr/vulnerability/junos-os-denial-of-service-via-bidirectional-lsp-rsvp-34328

Trust: 0.6

sources: VULHUB: VHN-372110 // JVNDB: JVNDB-2021-002496 // CNNVD: CNNVD-202101-1110 // NVD: CVE-2021-0208

SOURCES

db:VULHUBid:VHN-372110
db:JVNDBid:JVNDB-2021-002496
db:CNNVDid:CNNVD-202101-1110
db:NVDid:CVE-2021-0208

LAST UPDATE DATE

2024-11-23T22:25:12.145000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-372110date:2021-10-25T00:00:00
db:JVNDBid:JVNDB-2021-002496date:2021-09-17T07:55:00
db:CNNVDid:CNNVD-202101-1110date:2021-01-22T00:00:00
db:NVDid:CVE-2021-0208date:2024-11-21T05:42:12.430

SOURCES RELEASE DATE

db:VULHUBid:VHN-372110date:2021-01-15T00:00:00
db:JVNDBid:JVNDB-2021-002496date:2021-09-17T00:00:00
db:CNNVDid:CNNVD-202101-1110date:2021-01-13T00:00:00
db:NVDid:CVE-2021-0208date:2021-01-15T18:15:14.947