Information disclosure in F5 BIG-IP ASM

1) Missing Encryption of Sensitive Data

EUVDB-ID: #VU27516

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 - Missing Encryption of Sensitive Data

Exploit availability: No

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

External links

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

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.