SB2020043023 - Man-in-the-Middle (MitM) attack in F5 BIG-IP APM and APM Clients
Published: April 30, 2020 Updated: April 30, 2020
Security Bulletin ID
SB2020043023
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2020-5893)
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.
Remediation
Install update from vendor's website.