Vulnerability identifier: #VU27464
Vulnerability risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-300
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
BIG-IP APM
Hardware solutions /
Security hardware applicances
APM Clients
Hardware solutions /
Security hardware applicances
Vendor: F5 Networks
Description
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
BIG-IP APM: 11.6.1 - 15.1.0
APM Clients: 7.1.5 - 7.1.8
External links
http://api-u.f5.com/support/kb-articles/K97733133?cacheFlag=false
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.