CVE-2011-3414
HighSummary
Funkcja CaseInsensitiveHashProvider.getHashCode w implementacji HashTable w subsystemie ASP.NET w Microsoft .NET Framework oblicza wartości haszy dla parametrów formularzy bez ograniczeń, co pozwala na przewidywalne wywoływanie kolizji haszy. To może prowadzić do ataków typu denial of service (DoS) poprzez nadmierne zużycie CPU.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do przeciążenia serwera, co prowadzi do spadku wydajności aplikacji i potencjalnego przestoju usług.
Recommendation
Zaleca się aktualizację do najnowszej wersji .NET Framework, która zawiera poprawki zabezpieczeń eliminujące tę podatność oraz monitorowanie aplikacji pod kątem nietypowego zużycia zasobów.
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Original NVD description (English source)
The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS