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[email protected]CVE-2021-22998

HistoryMar 31, 2021 - 6:15 p.m.

CVE-2021-22998

2021-03-3118:15:15

[email protected]

web.nvd.nist.gov

cve-2021-22998

big-ip

syn flood

security vulnerability

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.5%

JSON

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation (SNAT) listeners. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected configurations

NVD

Node

f5big-ip_access_policy_managerRange11.6.1–11.6.5.3

f5big-ip_access_policy_managerRange12.1.0–12.1.5.3

f5big-ip_access_policy_managerRange13.1.0–13.1.3.6

f5big-ip_access_policy_managerRange14.1.0–14.1.4

f5big-ip_access_policy_managerRange15.1.0–15.1.2.1

f5big-ip_access_policy_managerRange16.0.0–16.0.1.1

f5big-ip_advanced_firewall_managerRange11.6.1–11.6.5.3

f5big-ip_advanced_firewall_managerRange12.1.0–12.1.5.3

f5big-ip_advanced_firewall_managerRange13.1.0–13.1.3.6

f5big-ip_advanced_firewall_managerRange14.1.0–14.1.4

f5big-ip_advanced_firewall_managerRange15.1.0–15.1.2.1

f5big-ip_advanced_firewall_managerRange16.0.0–16.0.1.1

f5big-ip_advanced_web_application_firewallRange11.6.1–11.6.5.3

f5big-ip_advanced_web_application_firewallRange12.1.0–12.1.5.3

f5big-ip_advanced_web_application_firewallRange13.1.0–13.1.3.6

f5big-ip_advanced_web_application_firewallRange14.1.0–14.1.4

f5big-ip_advanced_web_application_firewallRange15.1.0–15.1.2.1

f5big-ip_advanced_web_application_firewallRange16.0.0–16.0.1.1

f5big-ip_analyticsRange11.6.1–11.6.5.3

f5big-ip_analyticsRange12.1.0–12.1.5.3

f5big-ip_analyticsRange13.1.0–13.1.3.6

f5big-ip_analyticsRange14.1.0–14.1.4

f5big-ip_analyticsRange15.1.0–15.1.2.1

f5big-ip_analyticsRange16.0.0–16.0.1.1

f5big-ip_application_acceleration_managerRange11.6.1–11.6.5.3

f5big-ip_application_acceleration_managerRange12.1.0–12.1.5.3

f5big-ip_application_acceleration_managerRange13.1.0–13.1.3.6

f5big-ip_application_acceleration_managerRange14.1.0–14.1.4

f5big-ip_application_acceleration_managerRange15.1.0–15.1.2.1

f5big-ip_application_acceleration_managerRange16.0.0–16.0.1.1

f5big-ip_application_security_managerRange11.6.1–11.6.5.3

f5big-ip_application_security_managerRange12.1.0–12.1.5.3

f5big-ip_application_security_managerRange13.1.0–13.1.3.6

f5big-ip_application_security_managerRange14.1.0–14.1.4

f5big-ip_application_security_managerRange15.1.0–15.1.2.1

f5big-ip_application_security_managerRange16.0.0–16.0.1.1

f5big-ip_ddos_hybrid_defenderRange11.6.1–11.6.5.3

f5big-ip_ddos_hybrid_defenderRange12.1.0–12.1.5.3

f5big-ip_ddos_hybrid_defenderRange13.1.0–13.1.3.6

f5big-ip_ddos_hybrid_defenderRange14.1.0–14.1.4

f5big-ip_ddos_hybrid_defenderRange15.1.0–15.1.2.1

f5big-ip_ddos_hybrid_defenderRange16.0.0–16.0.1.1

f5big-ip_domain_name_systemRange11.6.1–11.6.5.3

f5big-ip_domain_name_systemRange12.1.0–12.1.5.3

f5big-ip_domain_name_systemRange13.1.0–13.1.3.6

f5big-ip_domain_name_systemRange14.1.0–14.1.4

f5big-ip_domain_name_systemRange15.1.0–15.1.2.1

f5big-ip_domain_name_systemRange16.0.0–16.0.1.1

f5big-ip_fraud_protection_serviceRange11.6.1–11.6.5.3

f5big-ip_fraud_protection_serviceRange12.1.0–12.1.5.3

f5big-ip_fraud_protection_serviceRange13.1.0–13.1.3.6

f5big-ip_fraud_protection_serviceRange14.1.0–14.1.4

f5big-ip_fraud_protection_serviceRange15.1.0–15.1.2.1

f5big-ip_fraud_protection_serviceRange16.0.0–16.0.1.1

f5big-ip_global_traffic_managerRange11.6.1–11.6.5.3

f5big-ip_global_traffic_managerRange12.1.0–12.1.5.3

f5big-ip_global_traffic_managerRange13.1.0–13.1.3.6

f5big-ip_global_traffic_managerRange14.1.0–14.1.4

f5big-ip_global_traffic_managerRange15.1.0–15.1.2.1

f5big-ip_global_traffic_managerRange16.0.0–16.0.1.1

f5big-ip_link_controllerRange11.6.1–11.6.5.3

f5big-ip_link_controllerRange12.1.0–12.1.5.3

f5big-ip_link_controllerRange13.1.0–13.1.3.6

f5big-ip_link_controllerRange14.1.0–14.1.4

f5big-ip_link_controllerRange15.1.0–15.1.2.1

f5big-ip_link_controllerRange16.0.0–16.0.1.1

f5big-ip_local_traffic_managerRange11.6.1–11.6.5.3

f5big-ip_local_traffic_managerRange12.1.0–12.1.5.3

f5big-ip_local_traffic_managerRange13.1.0–13.1.3.6

f5big-ip_local_traffic_managerRange14.1.0–14.1.4

f5big-ip_local_traffic_managerRange15.1.0–15.1.2.1

f5big-ip_local_traffic_managerRange16.0.0–16.0.1.1

f5big-ip_policy_enforcement_managerRange11.6.1–11.6.5.3

f5big-ip_policy_enforcement_managerRange12.1.0–12.1.5.3

f5big-ip_policy_enforcement_managerRange13.1.0–13.1.3.6

f5big-ip_policy_enforcement_managerRange14.1.0–14.1.4

f5big-ip_policy_enforcement_managerRange15.1.0–15.1.2.1

f5big-ip_policy_enforcement_managerRange16.0.0–16.0.1.1

f5ssl_orchestratorRange11.6.1–11.6.5.3

f5ssl_orchestratorRange12.1.0–12.1.5.3

f5ssl_orchestratorRange13.1.0–13.1.3.6

f5ssl_orchestratorRange14.1.0–14.1.4

f5ssl_orchestratorRange15.1.0–15.1.2.1

f5ssl_orchestratorRange16.0.0–16.0.1.1

CPENameOperatorVersion
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt11.6.5.3
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt12.1.5.3
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt13.1.3.6
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt14.1.4
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt15.1.2.1
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt16.0.1.1
f5:big-ip_advanced_firewall_managerf5 big-ip advanced firewall managerlt11.6.5.3
f5:big-ip_advanced_firewall_managerf5 big-ip advanced firewall managerlt12.1.5.3
f5:big-ip_advanced_firewall_managerf5 big-ip advanced firewall managerlt13.1.3.6
f5:big-ip_advanced_firewall_managerf5 big-ip advanced firewall managerlt14.1.4

CPE	Name	Operator	Version
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	11.6.5.3
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	12.1.5.3
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	13.1.3.6
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	14.1.4
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	15.1.2.1
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	16.0.1.1
f5:big-ip_advanced_firewall_manager	f5 big-ip advanced firewall manager	lt	11.6.5.3
f5:big-ip_advanced_firewall_manager	f5 big-ip advanced firewall manager	lt	12.1.5.3
f5:big-ip_advanced_firewall_manager	f5 big-ip advanced firewall manager	lt	13.1.3.6
f5:big-ip_advanced_firewall_manager	f5 big-ip advanced firewall manager	lt	14.1.4

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CNA Affected

[
  {
    "product": "BIG-IP",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, 11.6.x before 11.6.5.3"
      }
    ]
  }
]

References

support.f5.com/csp/article/K31934524

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.5%

JSON

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