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ID

VAR-202112-0297


CVE

CVE-2021-22955


TITLE

Citrix ADC  Resource exhaustion vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-016060

DESCRIPTION

A unauthenticated denial of service vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 when configured as a VPN (Gateway) or AAA virtual server could allow an attacker to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication. Citrix ADC Exists in a resource exhaustion vulnerability.Service operation interruption (DoS) It may be in a state

Trust: 1.71

sources: NVD: CVE-2021-22955 // JVNDB: JVNDB-2021-016060 // VULHUB: VHN-381429

AFFECTED PRODUCTS

vendor:citrixmodel:gatewayscope:gteversion:12.1

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vendor:citrixmodel:gatewayscope:ltversion:13.0-83.27

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vendor:citrixmodel:application delivery controllerscope:ltversion:13.0-83.27

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vendor:citrixmodel:gatewayscope:ltversion:12.1-63.22

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vendor:citrixmodel:gatewayscope:ltversion:11.1-65.23

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vendor:citrixmodel:application delivery controllerscope:ltversion:12.1-63.22

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vendor:citrixmodel:gatewayscope:gteversion:13.0

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vendor:citrixmodel:application delivery controllerscope:gteversion:12.1

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vendor:citrixmodel:application delivery controllerscope:lteversion:11.1-65.23

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vendor:citrixmodel:application delivery controllerscope:gteversion:13.0

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope:eqversion:citrix application delivery controller firmware 12.1-63.22

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope:eqversion:citrix gateway plugin

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope: - version: -

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope:eqversion:citrix application delivery controller firmware 11.1-65.23

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope:eqversion: -

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vendor:シトリックス システムズmodel:citrix application delivery controllerscope:eqversion:citrix application delivery controller firmware 13.0-83.27

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sources: JVNDB: JVNDB-2021-016060 // NVD: CVE-2021-22955

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-22955
value: HIGH

Trust: 1.0

NVD: CVE-2021-22955
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202111-970
value: HIGH

Trust: 0.6

VULHUB: VHN-381429
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-22955
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-381429
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-22955
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

NVD: CVE-2021-22955
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/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: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-381429 // JVNDB: JVNDB-2021-016060 // CNNVD: CNNVD-202111-970 // NVD: CVE-2021-22955

PROBLEMTYPE DATA

problemtype:CWE-400

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problemtype:Resource exhaustion (CWE-400) [NVD evaluation ]

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sources: VULHUB: VHN-381429 // JVNDB: JVNDB-2021-016060 // NVD: CVE-2021-22955

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202111-970

TYPE

resource management error

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sources: CNNVD: CNNVD-202111-970

PATCH

title:CTX330728url:https://support.citrix.com/article/CTX330728/citrix-application-delivery-controller-citrix-gateway-and-citrix-sdwan-wanop-edition-appliance-security-update

Trust: 0.8

sources: JVNDB: JVNDB-2021-016060

EXTERNAL IDS

db:NVDid:CVE-2021-22955

Trust: 3.3

db:JVNDBid:JVNDB-2021-016060

Trust: 0.8

db:AUSCERTid:ESB-2021.3830

Trust: 0.6

db:CNNVDid:CNNVD-202111-970

Trust: 0.6

db:VULHUBid:VHN-381429

Trust: 0.1

sources: VULHUB: VHN-381429 // JVNDB: JVNDB-2021-016060 // CNNVD: CNNVD-202111-970 // NVD: CVE-2021-22955

REFERENCES

url:https://support.citrix.com/article/ctx330728

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2021-22955

Trust: 1.4

url:https://www.auscert.org.au/bulletins/esb-2021.3830

Trust: 0.6

sources: VULHUB: VHN-381429 // JVNDB: JVNDB-2021-016060 // CNNVD: CNNVD-202111-970 // NVD: CVE-2021-22955

SOURCES

db:VULHUBid:VHN-381429
db:JVNDBid:JVNDB-2021-016060
db:CNNVDid:CNNVD-202111-970
db:NVDid:CVE-2021-22955

LAST UPDATE DATE

2024-08-14T14:37:48.748000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-381429date:2021-12-08T00:00:00
db:JVNDBid:JVNDB-2021-016060date:2022-12-06T01:46:00
db:CNNVDid:CNNVD-202111-970date:2021-12-16T00:00:00
db:NVDid:CVE-2021-22955date:2021-12-08T19:43:41.437

SOURCES RELEASE DATE

db:VULHUBid:VHN-381429date:2021-12-07T00:00:00
db:JVNDBid:JVNDB-2021-016060date:2022-12-06T00:00:00
db:CNNVDid:CNNVD-202111-970date:2021-11-10T00:00:00
db:NVDid:CVE-2021-22955date:2021-12-07T14:15:08.890