PT-2020-18815 · Openbsd+1 · Openssh+2

Published 2020-08-26 · Updated 2020-09-02 · CVE-2020-5917

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 11.6.1 through 11.6.5.2 F5 BIG-IP versions 12.1.0 through 12.1.5.1 F5 BIG-IP versions 13.1.0 through 13.1.3.4 F5 BIG-IP versions 14.1.0 through 14.1.2.3 F5 BIG-IP versions 15.0.0 through 15.0.1.3 F5 BIG-IP versions 15.1.0 through 15.1.0.4 F5 BIG-IQ versions 5.2.0 through 7.0.0

Description The host OpenSSH servers in the affected versions utilize keys of less than 2048 bits, which are no longer considered secure.

Recommendations For F5 BIG-IP versions 11.6.1 through 11.6.5.2, consider updating to a version that utilizes secure key sizes. For F5 BIG-IP versions 12.1.0 through 12.1.5.1, consider updating to a version that utilizes secure key sizes. For F5 BIG-IP versions 13.1.0 through 13.1.3.4, consider updating to a version that utilizes secure key sizes. For F5 BIG-IP versions 14.1.0 through 14.1.2.3, consider updating to a version that utilizes secure key sizes. For F5 BIG-IP versions 15.0.0 through 15.0.1.3, consider updating to a version that utilizes secure key sizes. For F5 BIG-IP versions 15.1.0 through 15.1.0.4, consider updating to a version that utilizes secure key sizes. For F5 BIG-IQ versions 5.2.0 through 7.0.0, consider updating to a version that utilizes secure key sizes.

Fix

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

CVE-2020-5917

Affected Products

F5 Big-Ip

F5 Big-Iq

Openssh

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2020-5917 · Security Note
• https://support.f5.com/csp/article/K43404629 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-5917 · Vendor Advisory