CVE-2019-3654 Client Proxy (MCP) - Authentication Bypass vulnerability
Local users can bypass web traffic scanning and access blocked sites by generating unauthorized authorization keys in McAfee Client Proxy.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-3654?
CVE-2019-3654 is a medium-severity authentication bypass vulnerability in McAfee Client Proxy (MCP), published on 22 Nov 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Authentication Bypass vulnerability in the Microsoft Windows client in McAfee Client Proxy (MCP) prior to 3.0.0 allows local user to bypass scanning of web traffic and gain access to blocked sites for a short period of time via generating an authorization key on the client which should only be generated by the network administrator.
Weakness: CWE-287
Which versions are affected by CVE-2019-3654?
It affects 1 product.
Products include Mcafee Client Proxy.
How do I fix CVE-2019-3654?
No fix has been published for CVE-2019-3654 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-3654 being exploited?
There is no known exploitation of CVE-2019-3654 in the wild and no public exploit code.
Sources
Also known as GHSA-qwm5-wg3c-7c8w.