CVE-2020-37182
HighSummary
Redir 3.3 zawiera podatność na przepełnienie stosu w funkcji doproxyconnect(), która pozwala atakującym na zablokowanie aplikacji poprzez wysłanie zbyt dużego wejścia. Atakujący mogą wykorzystać bufor sprintf() bez odpowiedniego sprawdzania długości, co prowadzi do nadpisania pamięci i powoduje błąd segmentacji, skutkując zakończeniem programu.
Risk Assessment
Podatność ta może prowadzić do awarii aplikacji, co wpływa na dostępność usług w organizacji. Atakujący mogą wykorzystać tę lukę do zakłócenia działania systemu.
Recommendation
Zaleca się aktualizację do najnowszej wersji Redir, która zawiera poprawki zabezpieczeń. Należy również wprowadzić dodatkowe kontrole długości wejścia w funkcji doproxyconnect().
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Original NVD description (English source)
Redir 3.3 contains a stack overflow vulnerability in the doproxyconnect() function that allows attackers to crash the application by sending oversized input. Attackers can exploit the sprintf() buffer without proper length checking to overwrite memory and cause a segmentation fault, resulting in program termination.