Vulnerability CVE-2021-23051

Vulnerability Name:

CVE-2021-23051 (CCN-208086)

Assigned:

2021-08-24

Published:

2021-08-24

Updated:

2021-09-27

Summary:

On BIG-IP versions 15.1.0.4 through 15.1.3, when the Data Plane Development Kit (DPDK)/Elastic Network Adapter (ENA) driver is used with BIG-IP on Amazon Web Services (AWS) systems, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This is due to an incomplete fix for CVE-2020-5862.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

5.4 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): High Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2021-23051

Source: XF
Type: UNKNOWN
f5-cve202123051-dos(208086)

Source: CCN
Type: F5 Security Advisory K01153535
BIG-IP AWS vulnerability CVE-2021-23051

Source: MISC
Type: Vendor Advisory
https://support.f5.com/csp/article/K01153535

Vulnerable Configuration:

Configuration 1:

cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 15.1.0.4 and < 15.1.3.1)

Denotes that component is vulnerable

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