Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-5871

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/04/2020
Last modified:
05/05/2020

Description

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 14.1.0 (including) 14.1.2.3 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools