PT-2020-16777 · F5 · Big-Ip

Published 2020-12-24 · Updated 2020-12-28 · CVE-2020-27715

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 14.1.0 through 14.1.3 F5 BIG-IP versions 15.1.0 through 15.1.0.5

Description A crafted TLS request to the BIG-IP management interface via port 443 can cause high (~100%) CPU utilization by the httpd daemon.

Recommendations For F5 BIG-IP versions 14.1.0 through 14.1.3, consider restricting access to the management interface to minimize the risk of exploitation. For F5 BIG-IP versions 15.1.0 through 15.1.0.5, consider restricting access to the management interface 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-2020-27715

Affected Products

Big-Ip

References · 4

• https://support.f5.com/csp/article/K25691186 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27715 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27715 · Vendor Advisory
• https://t.me/cvenotify/7709 · Telegram Post