#VU8920 Man-in-the-middle attack in BIG-IP PEM - CVE-2017-6144

Vulnerability identifier: #VU8920

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-6144

CWE-ID: CWE-300

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
BIG-IP PEM
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description
The vulnerability allows an adjacent attacker to conduct MITM-attack.

The weakness exists due to improper verification of certificates when the Type Allocation Code (TAC) database file is download via HTTPS. An adjacent attacker can use man-in-the-middle techniques to monitor the traffic from a user attempting to download the TAC database file via HTTPS and access or modify sensitive information in the TAC database file.

Mitigation
Update to version 12.1.2 HF 1 or 13.0.0.

Vulnerable software versions

BIG-IP PEM: 12.1.0 - 12.1.2

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External links
https://support.f5.com/csp/article/K81601350

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.