CVE-2008-3068
HighSummary
Microsoft Crypto API w wersjach od 5.131.2600.2180 do 6.0, używany w Outlook, Windows Live Mail i Office 2007, wykonuje sprawdzenia listy unieważnionych certyfikatów (CRL) przy użyciu dowolnego URL z certyfikatu osadzonego w wiadomości e-mail S/MIME lub podpisanym dokumencie. To umożliwia zdalnym atakującym uzyskanie informacji o czasach odczytu i adresach IP odbiorców oraz wynikach skanowania portów poprzez spreparowany certyfikat z rozszerzeniem Authority Information Access (AIA).
Risk Assessment
Podatność ta naraża organizacje na ujawnienie informacji o użytkownikach, co może prowadzić do dalszych ataków i naruszenia prywatności. Atakujący mogą wykorzystać te informacje do przeprowadzenia skanowania portów i zbierania danych o infrastrukturze sieciowej.
Recommendation
Zaleca się aktualizację Microsoft Crypto API do najnowszej wersji oraz monitorowanie i ograniczenie użycia certyfikatów, które mogą zawierać niebezpieczne rozszerzenia. Warto również wdrożyć dodatkowe mechanizmy zabezpieczeń, aby zminimalizować ryzyko związane z nieautoryzowanym dostępem do informacji o użytkownikach.
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Original NVD description (English source)
Microsoft Crypto API 5.131.2600.2180 through 6.0, as used in Outlook, Windows Live Mail, and Office 2007, performs Certificate Revocation List (CRL) checks by using an arbitrary URL from a certificate embedded in a (1) S/MIME e-mail message or (2) signed document, which allows remote attackers to obtain reading times and IP addresses of recipients, and port-scan results, via a crafted certificate with an Authority Information Access (AIA) extension.

