Vulnerability CVE-2020-5929 - CERT Civis.Net

Vulnerability Name:

CVE-2020-5929 (CCN-188064)

Assigned:

2020-09-09

Published:

2020-09-09

Updated:

2021-07-21

Summary:

In versions 13.0.0-13.0.0 HF2, 12.1.0-12.1.2 HF1, and 11.6.1-11.6.2, BIG-IP platforms with Cavium Nitrox SSL hardware acceleration cards, a Virtual Server configured with a Client SSL profile, and using Anonymous (ADH) or Ephemeral (DHE) Diffie-Hellman key exchange and Single DH use option not enabled in the options list may be vulnerable to crafted SSL/TLS Handshakes that may result with a PMS (Pre-Master Secret) that starts in a 0 byte and may lead to a recovery of plaintext messages as BIG-IP TLS/SSL ADH/DHE sends different error messages acting as an oracle. Similar error messages when PMS starts with 0 byte coupled with very precise timing measurement observation may also expose this vulnerability.

CVSS v3 Severity:

5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/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): High Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/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): High Integrity (I): High Availibility (A): None

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2020-5929

Source: XF
Type: UNKNOWN
f5-cve20205929-info-disc(188064)

Source: CCN
Type: F5 Security Advisory K91158923
BIG-IP SSL/TLS ADH/DHE vulnerability CVE-2020-5929

Source: MISC
Type: Vendor Advisory
https://support.f5.com/csp/article/K91158923

Vulnerable Configuration:

Configuration 1:

cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_access_policy_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_advanced_firewall_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_analytics:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_application_acceleration_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_application_acceleration_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_application_security_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_domain_name_system:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_domain_name_system:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_fraud_protection_service:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_fraud_protection_service:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_global_traffic_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_global_traffic_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_local_traffic_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_local_traffic_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_global_traffic_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_link_controller:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:big-ip_policy_enforcement_manager:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:big-ip_policy_enforcement_manager:11.6.2:-:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:ssl_orchestrator:12.1.2:-:*:*:*:*:*:*

OR cpe:/a:f5:ssl_orchestrator:12.1.2:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:ssl_orchestrator:13.0.0:-:*:*:*:*:*:*

OR cpe:/a:f5:ssl_orchestrator:13.0.0:hotfix1:*:*:*:*:*:*

OR cpe:/a:f5:ssl_orchestrator:13.0.0:hotfix2:*:*:*:*:*:*

OR cpe:/a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* (Version >= 12.1.0 and < 12.1.2)

OR cpe:/a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* (Version >= 11.6.1 and < 11.6.2)

OR cpe:/a:f5:ssl_orchestrator:11.6.2:-:*:*:*:*:*:*

Configuration CCN 1:

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

OR cpe:/a:f5:big-ip:11.6.2:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:13.0.0:*:*:*:*:*:*:*

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

Denotes that component is vulnerable