Vulnerability CVE-2020-5893

Vulnerability Name:

CVE-2020-5893 (CCN-181277)

Assigned:

2020-04-30

Published:

2020-04-30

Updated:

2021-07-21

Summary:

In versions 7.1.5-7.1.8, when a user connects to a VPN using BIG-IP Edge Client over an unsecure network, BIG-IP Edge Client responds to authentication requests over HTTP while sending probes for captive portal detection.

CVSS v3 Severity:

3.7 Low (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.2 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/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): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

3.7 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.2 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/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): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

CVSS v2 Severity:

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

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

2.6 Low (CCN 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 Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2020-5893

Source: XF
Type: UNKNOWN
f5-cve20205893-mitm(181277)

Source: CCN
Type: F5 Security Advisory K97733133
BIG-IP APM Edge Client vulnerability CVE-2020-5893

Source: CONFIRM
Type: Vendor Advisory
https://support.f5.com/csp/article/K97733133

Vulnerable Configuration:

Configuration 1:

cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.5)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.5)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 13.1.0 and <= 13.1.3)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 14.0.0 and <= 14.1.2)

OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 15.0.0 and <= 15.1.0)

OR cpe:/a:f5:big-ip_access_policy_manager_client:*:*:*:*:*:*:*:* (Version >= 7.1.5 and < 7.1.9)

Configuration CCN 1:

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

OR cpe:/a:f5:big-ip_access_policy_manager:15.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:14.0.0:*:*:*:*:*:*:*

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

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.5:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:11.6.5:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:14.1.2:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:13.1.3:*:*:*:*:*:*:*

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

OR cpe:/a:f5:big-ip_access_policy_manager:15.1.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

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