QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.
Metrics
CVSS Version: 3.1 |
Base Score: 5.3 MEDIUM Vector: CVSS:3.1/AC:L/AV:N/A:N/C:N/I:L/PR:N/S:U/UI:N