PT-2018-8303 · F5 · F5 Big-Ip

Published 2018-04-13 · Updated 2019-10-03 · CVE-2017-6156

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 11.2.1 F5 BIG-IP versions 11.5.1 through 11.5.5 F5 BIG-IP versions 11.6.0 through 11.6.1 F5 BIG-IP versions 12.1.0 through 12.1.1

Description The issue allows a remote attacker to disrupt or impersonate tunnels that have completed phase 1 IPSec negotiations when the system is configured with a wildcard IPSec tunnel endpoint. The attacker must possess the necessary credentials to negotiate phase 1 of the IPSec exchange, which limits the attack surface to other endpoints under the same administration.

Recommendations For F5 BIG-IP version 11.2.1, update to a version that is not affected by this issue. For F5 BIG-IP versions 11.5.1 through 11.5.5, update to a version that is not affected by this issue. For F5 BIG-IP versions 11.6.0 through 11.6.1, update to a version that is not affected by this issue. For F5 BIG-IP versions 12.1.0 through 12.1.1, update to a version that is not affected by this issue.

Fix

Related Identifiers

CVE-2017-6156

Affected Products

F5 Big-Ip

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2017-6156 · Security Note
• https://osv.dev/vulnerability/CVE-2017-6156 · Vendor Advisory
• https://support.f5.com/csp/article/K05263202 · Vendor Advisory