CVE-2012-3376
HighSummary
W Apache Hadoop 2.0.0 alpha, DataNodes nie weryfikują tokenów bloków klientów, gdy Kerberos jest włączony, a DataNode wypożyczył ten sam BlockPool dwukrotnie z NodeName. Może to umożliwić zdalnym klientom odczyt dowolnych bloków oraz zapis do bloków, do których mają jedynie dostęp do odczytu.
Risk Assessment
Organizacja może być narażona na nieautoryzowany dostęp do danych oraz możliwość modyfikacji bloków, co może prowadzić do utraty integralności danych i naruszenia poufności.
Recommendation
Zaleca się aktualizację do nowszej wersji Apache Hadoop, która poprawia weryfikację tokenów bloków, oraz monitorowanie dostępu do danych w systemie.
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Original NVD description (English source)
DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.

