Vulnerability identifier: #VU27517

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5888

CWE-ID: CWE-287

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
BIG-IP
Hardware solutions / Firmware
BIG-IP LTM
Hardware solutions / Security hardware applicances
BIG-IP AFM
Hardware solutions / Security hardware applicances
BIG-IP Analytics
Hardware solutions / Security hardware applicances
BIG-IP APM
Hardware solutions / Security hardware applicances
BIG-IP ASM
Hardware solutions / Security hardware applicances
BIG-IP FPS
Hardware solutions / Security hardware applicances
BIG-IP GTM
Hardware solutions / Security hardware applicances
BIG-IP PEM
Hardware solutions / Security hardware applicances
BIG-IP AAM
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP DNS
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP Link Controller
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in TMM in Virtual Edition. A remote attacker on the local network can access local daemons and bypass port lockdown settings.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.1.0 - 14.1.2, 15.0.0 - 15.0.1, 15.1.0

BIG-IP LTM: 14.1.0 - 15.1.0

BIG-IP AAM: 14.1.0 - 15.1.0

BIG-IP AFM: 14.1.0 - 15.1.0

BIG-IP Analytics: 14.1.0 - 15.1.0

BIG-IP APM: 14.1.0 - 15.1.0

BIG-IP ASM: 14.1.0 - 15.1.0

BIG-IP DNS: 14.1.0 - 15.1.0

BIG-IP FPS: 14.1.0 - 15.1.0

BIG-IP GTM: 14.1.0 - 15.1.0

BIG-IP Link Controller: 14.1.0 - 15.1.0

BIG-IP PEM: 14.1.0 - 15.1.0

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External links
http://support.f5.com/csp/article/K73274382

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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