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ID

VAR-202012-0731


CVE

CVE-2020-27724


TITLE

F5 Networks  of  BIG-IP Access Policy Manager (APM)  Resource exhaustion vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-018314

DESCRIPTION

In BIG-IP APM versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, on systems running more than one TMM instance, authenticated VPN users may consume excessive resources by sending specially-crafted malicious traffic over the tunnel. F5 Networks of BIG-IP Access Policy Manager (APM) Exists in a resource exhaustion vulnerability.Service operation interruption (DoS) It may be in a state. F5 BIG-IP APM is a set of access and security solutions from F5 Corporation of the United States. The product provides unified access to business-critical applications and networks. There is a security vulnerability in F5 BIG-IP APM, which can be exploited by attackers to trigger overload through TMM Instances VPN users of F5 BIG-IP APM, thereby triggering a denial of service

Trust: 1.8

sources: NVD: CVE-2020-27724 // JVNDB: JVNDB-2020-018314 // VULHUB: VHN-371835 // VULMON: CVE-2020-27724

AFFECTED PRODUCTS

vendor:f5model:big-ip access policy managerscope:lteversion:12.1.5

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vendor:f5model:big-ip access policy managerscope:gteversion:15.0.0

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vendor:f5model:big-ip access policy managerscope:gteversion:16.0.0

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vendor:f5model:big-ip access policy managerscope:gteversion:13.1.0

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vendor:f5model:big-ip access policy managerscope:ltversion:16.0.1

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vendor:f5model:big-ip access policy managerscope:gteversion:11.6.1

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vendor:f5model:big-ip access policy managerscope:gteversion:14.1.0

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vendor:f5model:big-ip access policy managerscope:gteversion:12.1.0

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vendor:f5model:big-ip access policy managerscope:gteversion:15.1.0

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vendor:f5model:big-ip access policy managerscope:ltversion:13.1.3.5

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vendor:f5model:big-ip access policy managerscope:ltversion:15.0.1.4

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vendor:f5model:big-ip access policy managerscope:lteversion:11.6.5

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vendor:f5model:big-ip access policy managerscope:ltversion:14.1.3.1

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vendor:f5model:big-ip access policy managerscope:ltversion:15.1.0.5

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vendor:f5model:big-ip access policy managerscope:eqversion:13.1.0 that's all 13.1.3.5

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vendor:f5model:big-ip access policy managerscope:eqversion:11.6.1 to 11.6.5

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vendor:f5model:big-ip access policy managerscope:eqversion:16.0.0 that's all 16.0.1

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vendor:f5model:big-ip access policy managerscope:eqversion:14.1.0 that's all 14.1.3.1

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vendor:f5model:big-ip access policy managerscope:eqversion:12.1.0 to 12.1.5

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vendor:f5model:big-ip access policy managerscope:eqversion:15.1.0 that's all 15.1.0.5

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vendor:f5model:big-ip access policy managerscope:eqversion:15.0.0 that's all 15.0.1.4

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vendor:f5model:big-ip access policy managerscope:eqversion: -

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sources: JVNDB: JVNDB-2020-018314 // NVD: CVE-2020-27724

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-27724
value: MEDIUM

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NVD: CVE-2020-27724
value: MEDIUM

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CNNVD: CNNVD-202012-1279
value: MEDIUM

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VULHUB: VHN-371835
value: MEDIUM

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VULMON: CVE-2020-27724
value: MEDIUM

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nvd@nist.gov: CVE-2020-27724
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

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VULHUB: VHN-371835
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2020-27724
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 3.6
version: 3.1

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NVD: CVE-2020-27724
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-371835 // VULMON: CVE-2020-27724 // JVNDB: JVNDB-2020-018314 // CNNVD: CNNVD-202012-1279 // NVD: CVE-2020-27724

PROBLEMTYPE DATA

problemtype:CWE-400

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

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sources: VULHUB: VHN-371835 // JVNDB: JVNDB-2020-018314 // NVD: CVE-2020-27724

THREAT TYPE

remote

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sources: CNNVD: CNNVD-202012-1279

TYPE

resource management error

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sources: CNNVD: CNNVD-202012-1279

PATCH

title:K04518313url:https://my.f5.com/manage/s/article/K04518313

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title:F5 BIG-IP APM Remediation of resource management error vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=138056

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sources: JVNDB: JVNDB-2020-018314 // CNNVD: CNNVD-202012-1279

EXTERNAL IDS

db:NVDid:CVE-2020-27724

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db:JVNDBid:JVNDB-2020-018314

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db:CNNVDid:CNNVD-202012-1279

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db:AUSCERTid:ESB-2020.4487

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db:VULHUBid:VHN-371835

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db:VULMONid:CVE-2020-27724

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sources: VULHUB: VHN-371835 // VULMON: CVE-2020-27724 // JVNDB: JVNDB-2020-018314 // CNNVD: CNNVD-202012-1279 // NVD: CVE-2020-27724

REFERENCES

url:https://support.f5.com/csp/article/k04518313

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url:https://nvd.nist.gov/vuln/detail/cve-2020-27724

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url:https://vigilance.fr/vulnerability/f5-big-ip-apm-overload-via-tmm-instances-vpn-users-34143

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url:https://www.auscert.org.au/bulletins/esb-2020.4487/

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url:https://cwe.mitre.org/data/definitions/400.html

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url:https://nvd.nist.gov

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sources: VULHUB: VHN-371835 // VULMON: CVE-2020-27724 // JVNDB: JVNDB-2020-018314 // CNNVD: CNNVD-202012-1279 // NVD: CVE-2020-27724

SOURCES

db:VULHUBid:VHN-371835
db:VULMONid:CVE-2020-27724
db:JVNDBid:JVNDB-2020-018314
db:CNNVDid:CNNVD-202012-1279
db:NVDid:CVE-2020-27724

LAST UPDATE DATE

2024-11-23T22:16:11.478000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-371835date:2020-12-28T00:00:00
db:VULMONid:CVE-2020-27724date:2020-12-28T00:00:00
db:JVNDBid:JVNDB-2020-018314date:2024-07-19T02:18:00
db:CNNVDid:CNNVD-202012-1279date:2021-01-05T00:00:00
db:NVDid:CVE-2020-27724date:2024-11-21T05:21:42.060

SOURCES RELEASE DATE

db:VULHUBid:VHN-371835date:2020-12-24T00:00:00
db:VULMONid:CVE-2020-27724date:2020-12-24T00:00:00
db:JVNDBid:JVNDB-2020-018314date:2024-07-19T00:00:00
db:CNNVDid:CNNVD-202012-1279date:2020-12-17T00:00:00
db:NVDid:CVE-2020-27724date:2020-12-24T15:15:12.843