Details of VAR-202109-0785

ID

VAR-202109-0785

CVE

CVE-2021-23047

TITLE

BIG-IP APM Resource exhaustion vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-012086

DESCRIPTION

On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x, when BIG-IP APM performs Online Certificate Status Protocol (OCSP) verification of a certificate that contains Authority Information Access (AIA), undisclosed requests may cause an increase in memory use. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. BIG-IP APM Exists in a resource exhaustion vulnerability.Service operation interruption (DoS) It may be in a state. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. 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. F5 BIG-IP APM has a security vulnerability. The vulnerability stems from the fact that an attacker can cause a fatal error through OCSP Memory Use of F5 BIG-IP APM to trigger a denial of service

Trust: 2.34

sources: NVD: CVE-2021-23047 // JVNDB: JVNDB-2021-012086 // CNNVD: CNNVD-202104-975 // VULHUB: VHN-381533 // VULMON: CVE-2021-23047

AFFECTED PRODUCTS

vendor:	f5	model:	big-ip access policy manager	scope:	lte	version:	12.1.6	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	15.1.0	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	lt	version:	15.1.3.1	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	11.6.1	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	14.1.0	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	lt	version:	13.1.4	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	16.0.0	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	12.1.0	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	lt	version:	14.1.4.3	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	gte	version:	13.1.0	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	lte	version:	11.6.5	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	lte	version:	16.0.1	Trust: 1.0
vendor:	f5	model:	big-ip access policy manager	scope:	-	version:	-	Trust: 0.8
vendor:	f5	model:	big-ip access policy manager	scope:	eq	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-012086 // NVD: CVE-2021-23047

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-23047
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2021-23047
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-202104-975
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202108-2252
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-381533
value:	MEDIUM
Trust: 0.1
VULMON:	CVE-2021-23047
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-23047
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: 1.9
VULHUB:	VHN-381533
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

nvd@nist.gov:	CVE-2021-23047
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	3.9
impactScore:	1.4
version:	3.1
Trust: 1.0
NVD:	CVE-2021-23047
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULHUB: VHN-381533 // VULMON: CVE-2021-23047 // JVNDB: JVNDB-2021-012086 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2252 // NVD: CVE-2021-23047

PROBLEMTYPE DATA

problemtype:	CWE-400	Trust: 1.1
problemtype:	Resource exhaustion (CWE-400) [NVD evaluation ]	Trust: 0.8

sources: VULHUB: VHN-381533 // JVNDB: JVNDB-2021-012086 // NVD: CVE-2021-23047

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202108-2252

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:

K79428827

url:

https://support.f5.com/csp/article/K79428827

Trust: 0.8

sources: JVNDB: JVNDB-2021-012086

EXTERNAL IDS

db:	NVD	id:	CVE-2021-23047	Trust: 3.4
db:	JVNDB	id:	JVNDB-2021-012086	Trust: 0.8
db:	CNNVD	id:	CNNVD-202108-2252	Trust: 0.7
db:	CS-HELP	id:	SB2021041363	Trust: 0.6
db:	CNNVD	id:	CNNVD-202104-975	Trust: 0.6
db:	AUSCERT	id:	ESB-2021.2869	Trust: 0.6
db:	CS-HELP	id:	SB2021083010	Trust: 0.6
db:	VULHUB	id:	VHN-381533	Trust: 0.1
db:	VULMON	id:	CVE-2021-23047	Trust: 0.1

sources: VULHUB: VHN-381533 // VULMON: CVE-2021-23047 // JVNDB: JVNDB-2021-012086 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2252 // NVD: CVE-2021-23047

REFERENCES

url:	https://support.f5.com/csp/article/k79428827	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2021-23047	Trust: 0.8
url:	https://www.cybersecurity-help.cz/vdb/sb2021041363	Trust: 0.6
url:	https://www.cybersecurity-help.cz/vdb/sb2021083010	Trust: 0.6
url:	https://vigilance.fr/vulnerability/f5-big-ip-apm-denial-of-service-via-ocsp-memory-use-36208	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2021.2869	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/400.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULHUB: VHN-381533 // VULMON: CVE-2021-23047 // JVNDB: JVNDB-2021-012086 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2252 // NVD: CVE-2021-23047

SOURCES

db:	VULHUB	id:	VHN-381533
db:	VULMON	id:	CVE-2021-23047
db:	JVNDB	id:	JVNDB-2021-012086
db:	CNNVD	id:	CNNVD-202104-975
db:	CNNVD	id:	CNNVD-202108-2252
db:	NVD	id:	CVE-2021-23047

LAST UPDATE DATE

2024-08-14T12:16:13.479000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-381533	date:	2021-09-27T00:00:00
db:	VULMON	id:	CVE-2021-23047	date:	2021-09-27T00:00:00
db:	JVNDB	id:	JVNDB-2021-012086	date:	2022-08-23T08:45:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-14T00:00:00
db:	CNNVD	id:	CNNVD-202108-2252	date:	2021-09-28T00:00:00
db:	NVD	id:	CVE-2021-23047	date:	2021-09-27T16:36:54.417

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-381533	date:	2021-09-14T00:00:00
db:	VULMON	id:	CVE-2021-23047	date:	2021-09-14T00:00:00
db:	JVNDB	id:	JVNDB-2021-012086	date:	2022-08-23T00:00:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-13T00:00:00
db:	CNNVD	id:	CNNVD-202108-2252	date:	2021-08-24T00:00:00
db:	NVD	id:	CVE-2021-23047	date:	2021-09-14T14:15:10.263