CVE-2006-4272
HighSummary
Jelsoft vBulletin w wersji 3.5.4 pozwala zdalnym atakującym na rejestrowanie wielu dowolnych użytkowników, co może prowadzić do odmowy usługi poprzez nadmierne zużycie zasobów w wyniku dużej liczby żądań do pliku register.php.
Risk Assessment
Organizacja może doświadczyć problemów z dostępnością usługi z powodu nadmiernego obciążenia serwera, co może wpłynąć na użytkowników i ich doświadczenia.
Recommendation
Zaleca się włączenie mechanizmu CAPTCHA w procesie rejestracji oraz monitorowanie i ograniczanie liczby żądań do serwera na poziomie infrastruktury.
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Original NVD description (English source)
Jelsoft vBulletin 3.5.4 allows remote attackers to register multiple arbitrary users and cause a denial of service (resource consumption) via a large number of requests to register.php. NOTE: the vendor has disputed this vulnerability, stating "If you have the CAPTCHA enabled then the registrations wont even go through. ... if you are talking about the flood being allowed in the first place then surely this is something that should be handled at the server level.

