Man-in-the-Middle (MitM) attack in APM Clients and BIG-IP APM - CVE-2020-5893

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU27464

Man-in-the-Middle (MitM) attack in APM Clients and BIG-IP APM - CVE-2020-5893

Published: April 30, 2020


Vulnerability identifier: #VU27464
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5893
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.

The vulnerability exists when a user connects to a VPN using BIG-IP Edge Client over an unsecure network, BIG-IP Edge Client responds to authentication requests over HTTP while sending probes for captive portal detection. A remote attacker can perform a man-in-the-middle attack by deploying a malicious captive portal to obtain the encrypted NT Lan Manager (NTLM) challenge response.


Affected software

APM Clients
BIG-IP APM

How to mitigate CVE-2020-5893

Install updates from vendor's website.

APM Clients - update to 7.1.9

External References

Related Security Bulletins