CVE-2026-9058: Krajowa Izba Rozliczeniowa Szafir SDK, слаба

Описание

Оригинално описание

For untrusted certificates that contain the "Authority Information Access - caIssuers URI" extension, Szafir SDK will automatically download the parent CA certificate from the specified URL and will import it to its trust store as a "nonqualified" certificate. In such a case, Szafir SDK returns a success status code of 0 ("Positively verified") upon successful cryptographic verification and a certificate status of "nonqualified". For other types of untrusted certificates, Szafir SDK returns a success status code of 0 ("Positively verified") upon successful cryptographic verification and a certificate status of "nondetermined". This may lead integrating applications to incorrectly treat the digital signature as valid despite an untrusted certificate chain. This flaw enables authentication bypass and user impersonation: (1) in use-cases other than qualified certificate authentication, or (2) if the qualified certificate authentication use-case is not correctly implemented by the integrating application. This issue was fixed in version 1.8.463.2.

Засегнати продукти

• Krajowa Izba Rozliczeniowa Szafir SDK: преди 1.8.463.2

Вид слабост

• CWE-637 Unnecessary Complexity in Protection Mechanism (Not Using 'Economy of Mechanism')
• CWE-393 Връщане на грешен код за състояние
• CWE-295 Неправилна валидация на сертификат

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-9058
• https://nvd.nist.gov/vuln/detail/CVE-2026-9058
• https://cert.pl/posts/2026/05/CVE-2026-9058
• https://www.elektronicznypodpis.pl/