Receita Federal IRPF Licensing Issue Vulnerability

Receita Federal Imposto de Renda Pessoa Física, a personal income tax application from Receita Federal, Inc. has an authorization problem vulnerability in Receita Federal IRPF that stems from a lack of authentication measures or insufficient authentication strength in the network system or product. The vulnerability is caused by a lack of authentication measures or insufficient authentication strength in the network system or product, which could be used by an attacker to launch a man-in-the-middle attack.