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[email protected]CVE-2020-5876

HistoryApr 30, 2020 - 9:15 p.m.

CVE-2020-5876

2020-04-3021:15:16

CWE-319

CWE-362

[email protected]

web.nvd.nist.gov

cve-2020-5876

big-ip

race condition

unencrypted connection

configuration sync peer

nvd

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

60.8%

JSON

On BIG-IP 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, a race condition exists where mcpd and other processes may make unencrypted connection attempts to a new configuration sync peer. The race condition can occur when changing the ConfigSync IP address of a peer, adding a new peer, or when the Traffic Management Microkernel (TMM) first starts up.

Affected configurations

NVD

Node

f5big-ip_access_policy_managerRange11.6.1–11.6.5.1

f5big-ip_access_policy_managerRange12.1.0–12.1.5.1

f5big-ip_access_policy_managerRange13.1.0–13.1.3.3

f5big-ip_access_policy_managerRange14.1.0–14.1.2.3

f5big-ip_access_policy_managerRange15.0.0–15.1.0.3

Node

f5big-ip_advanced_firewall_managerRange11.6.1–11.6.5.1

f5big-ip_advanced_firewall_managerRange12.1.0–12.1.5.1

f5big-ip_advanced_firewall_managerRange13.1.0–13.1.3.3

f5big-ip_advanced_firewall_managerRange14.1.0–14.1.2.3

f5big-ip_advanced_firewall_managerRange15.0.0–15.1.0.3

Node

f5big-ip_analyticsRange11.6.1–11.6.5.1

f5big-ip_analyticsRange12.1.0–12.1.5.1

f5big-ip_analyticsRange13.1.0–13.1.3.3

f5big-ip_analyticsRange14.1.0–14.1.2.3

f5big-ip_analyticsRange15.0.0–15.1.0.3

Node

f5big-ip_application_acceleration_managerRange11.6.1–11.6.5.1

f5big-ip_application_acceleration_managerRange12.1.0–12.1.5.1

f5big-ip_application_acceleration_managerRange13.1.0–13.1.3.3

f5big-ip_application_acceleration_managerRange14.1.0–14.1.2.3

f5big-ip_application_acceleration_managerRange15.0.0–15.1.0.3

Node

f5big-ip_application_security_managerRange11.6.1–11.6.5.1

f5big-ip_application_security_managerRange12.1.0–12.1.5.1

f5big-ip_application_security_managerRange13.1.0–13.1.3.3

f5big-ip_application_security_managerRange14.1.0–14.1.2.3

f5big-ip_application_security_managerRange15.0.0–15.1.0.3

Node

f5big-ip_domain_name_systemRange11.6.1–11.6.5.1

f5big-ip_domain_name_systemRange12.1.0–12.1.5.1

f5big-ip_domain_name_systemRange13.1.0–13.1.3.3

f5big-ip_domain_name_systemRange14.1.0–14.1.2.3

f5big-ip_domain_name_systemRange15.0.0–15.1.0.3

Node

f5big-ip_fraud_protection_serviceRange11.6.1–11.6.5.1

f5big-ip_fraud_protection_serviceRange12.1.0–12.1.5.1

f5big-ip_fraud_protection_serviceRange13.1.0–13.1.3.3

f5big-ip_fraud_protection_serviceRange14.1.0–14.1.2.3

f5big-ip_fraud_protection_serviceRange15.0.0–15.1.0.3

Node

f5big-ip_global_traffic_managerRange11.6.1–11.6.5.1

f5big-ip_global_traffic_managerRange12.1.0–12.1.5.1

f5big-ip_global_traffic_managerRange13.1.0–13.1.3.3

f5big-ip_global_traffic_managerRange14.1.0–14.1.2.3

f5big-ip_global_traffic_managerRange15.0.0–15.1.0.3

Node

f5big-ip_link_controllerRange11.6.1–11.6.5.1

f5big-ip_link_controllerRange12.1.0–12.1.5.1

f5big-ip_link_controllerRange13.1.0–13.1.3.3

f5big-ip_link_controllerRange14.1.0–14.1.2.3

f5big-ip_link_controllerRange15.0.0–15.1.0.3

Node

f5big-ip_local_traffic_managerRange11.6.1–11.6.5.1

f5big-ip_local_traffic_managerRange12.1.0–12.1.5.1

f5big-ip_local_traffic_managerRange13.1.0–13.1.3.3

f5big-ip_local_traffic_managerRange14.1.0–14.1.2.3

f5big-ip_local_traffic_managerRange15.0.0–15.1.0.3

Node

f5big-ip_policy_enforcement_managerRange11.6.1–11.6.5.1

f5big-ip_policy_enforcement_managerRange12.1.0–12.1.5.1

f5big-ip_policy_enforcement_managerRange13.1.0–13.1.3.3

f5big-ip_policy_enforcement_managerRange14.1.0–14.1.2.3

f5big-ip_policy_enforcement_managerRange15.0.0–15.1.0.3

CPENameOperatorVersion
f5:big-ip_access_policy_managerf5 big-ip access policy managerle11.6.5.1
f5:big-ip_access_policy_managerf5 big-ip access policy managerle12.1.5.1
f5:big-ip_access_policy_managerf5 big-ip access policy managerle13.1.3.3
f5:big-ip_access_policy_managerf5 big-ip access policy managerle14.1.2.3
f5:big-ip_access_policy_managerf5 big-ip access policy managerle15.1.0.3

CPE	Name	Operator	Version
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	le	11.6.5.1
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	le	12.1.5.1
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	le	13.1.3.3
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	le	14.1.2.3
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	le	15.1.0.3

CNA Affected

[
  {
    "product": "BIG-IP",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, 11.6.1-11.6.5.1"
      }
    ]
  }
]

References

support.f5.com/csp/article/K32121038

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

60.8%

JSON

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