Vulnerability identifier: #VU27516

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5879

CWE-ID: CWE-311

Exploitation vector: Network

Exploit availability: No

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

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the BIG-IP system, under certain configurations, sends data plane traffic to back-end servers unencrypted, even when a Server SSL profile is applied. A remote attacker can gain unauthorized access to sensitive information on the system.

The requests affected by this vulnerability are processed by a virtual server associated with a DoS profile that has a CAPTCHA challenge configured.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP ASM: 11.6.1 - 11.6.5

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External links
http://support.f5.com/csp/article/K88474783

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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 Internet.

Is there known malware, which exploits this vulnerability?

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