Vulnerability CVE-2020-5938

Vulnerability Name:

CVE-2020-5938 (CCN-190872)

Assigned:

2020-10-28

Published:

2020-10-28

Updated:

2020-11-09

Summary:

On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP configuration would otherwise allow.

CVSS v3 Severity:

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

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

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

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

CVSS v2 Severity:

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

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

2.1 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:P/I:N/A:N)

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

Vulnerability Type:

CWE-326

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2020-5938

Source: XF
Type: UNKNOWN
f5-cve20205938-info-disc(190872)

Source: CCN
Type: F5 Security Advisory K76610106
F5 IPsec vulnerability CVE-2020-5938

Source: MISC
Type: Vendor Advisory
https://support.f5.com/csp/article/K76610106

Vulnerable Configuration:

Configuration 1:

cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

OR cpe:/a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5.2)

OR cpe:/a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5.2)

OR cpe:/a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3.4)

Configuration CCN 1:

cpe:/a:f5:big-ip:11.6.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:13.1.0:*:*:*:*:*:*:*

OR cpe:/o:f5:big-ip:13.1.3:*:*:*:*:*:*:*

OR cpe:/o:f5:big-ip:12.1.5:*:*:*:*:*:*:*

OR cpe:/o:f5:big-ip:11.6.5:*:*:*:*:*:*:*

Denotes that component is vulnerable

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