CVE-2012-0920
HighSummary
Podatność typu use-after-free w serwerze Dropbear SSH w wersjach od 0.52 do 2012.54, gdy włączone są ograniczenia poleceń i uwierzytelnianie kluczem publicznym, umożliwia zdalnym uwierzytelnionym użytkownikom wykonanie dowolnego kodu oraz ominięcie ograniczeń poleceń poprzez wielokrotne wysyłanie spreparowanych żądań poleceń.
Risk Assessment
Organizacja może być narażona na zdalne wykonanie kodu przez uwierzytelnionych użytkowników, co może prowadzić do poważnych naruszeń bezpieczeństwa i utraty kontroli nad systemem.
Recommendation
Zaleca się aktualizację serwera Dropbear SSH do najnowszej wersji, aby usunąć tę podatność oraz przegląd i wzmocnienie polityki bezpieczeństwa dotyczącej uwierzytelniania i ograniczeń poleceń.
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Original NVD description (English source)
Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS