PT-2020-18845 · F5 · Big-Ip

Published 2020-11-19 · Updated 2020-12-02 · CVE-2020-5947

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions BIG-IP versions 15.1.0 through 15.1.1 BIG-IP versions 16.0.0 through 16.0.0.1

Description Attackers may be able to obtain TCP sequence numbers from the BIG-IP system that can be reused in future connections with the same source and destination port and IP numbers. The affected platforms include BIG-IP 2000 series, BIG-IP 4000 series, BIG-IP i2000 series, BIG-IP i4000 series, and BIG-IP Virtual Edition.

Recommendations For versions 15.1.0 through 15.1.1, consider restricting access to the affected BIG-IP platforms to minimize the risk of exploitation. For versions 16.0.0 through 16.0.0.1, consider restricting access to the affected BIG-IP platforms to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2020-5947

Affected Products

Big-Ip

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-5947 · Security Note
• https://osv.dev/vulnerability/CVE-2020-5947 · Vendor Advisory
• https://support.f5.com/csp/article/K64571774 · Vendor Advisory
• https://t.me/cibsecurity/16569 · Telegram Post
• https://t.me/cvenotify/5794 · Telegram Post