CVE-2017-6144
HIGHF5 BIG-IP PEM 12.1.0-12.1.2 - Improper Certificate Validation in TAC Database Download
Title source: llmDescription
In F5 BIG-IP PEM 12.1.0 through 12.1.2 when downloading the Type Allocation Code (TAC) database file via HTTPS, the server's certificate is not verified. Attackers in a privileged network position may be able to launch a man-in-the-middle attack against these connections. TAC databases are used in BIG-IP PEM for Device Type and OS (DTOS) and Tethering detection. Customers not using BIG-IP PEM, not configuring downloads of TAC database files, or not using HTTP for that download are not affected.
References (1)
Core 1
Core References
Mitigation, Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K81601350
Scores
CVSS v3
7.4
EPSS
0.0017
EPSS Percentile
38.1%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-295
Status
published
Products (4)
f5/big-ip_policy_enforcement_manager
12.1.0
f5/big-ip_policy_enforcement_manager
12.1.1
f5/big-ip_policy_enforcement_manager
12.1.2
F5 Networks, Inc./F5 BIG-IP PEM
12.1.0 through 12.1.2
Published
Oct 20, 2017
Tracked Since
Feb 18, 2026