epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, an attacker on the network path between the ePA service and the Konnektor can present any TLS certificate (self-signed, expired, wrong CN) and intercept all SOAP traffic. This includes patient identifiers (KVNR), SMC-B card operations (authentication, signing), document content, and credential exchanges. This vulnerability is fixed in 1.2.2.
Exploitability
AV:AAC:LPR:NUI:NScope
S:UImpact
C:HI:HA:N8.1/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCryptography