Actively exploited in the wild
Android OS Privilege Escalation Vulnerability
Android - Android OS · Listed in the CISA KEV since 2022-09-08. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2011-1823
HighCVSS 7.8KEVSummary
Demon zarządzania woluminami vold w systemie Android 3.0 oraz 2.x przed wersją 2.3.4 ufa wiadomościom otrzymywanym z gniazda PF_NETLINK. Umożliwia to lokalnym użytkownikom wykonanie dowolnego kodu i uzyskanie uprawnień roota poprzez negatywny indeks, który omija sprawdzenie maksymalnej wartości tylko dla liczb całkowitych w metodzie DirectVolume::handlePartitionAdded, co prowadzi do uszkodzenia pamięci.
Risk Assessment
Wykorzystanie tej podatności może prowadzić do pełnej kompromitacji urządzenia, umożliwiając lokalnym użytkownikom uzyskanie nieautoryzowanego dostępu do systemu. To stwarza poważne zagrożenie dla bezpieczeństwa danych i integralności systemu.
Recommendation
Zaleca się aktualizację systemu Android do wersji 2.3.4 lub nowszej, aby usunąć tę podatność. Dodatkowo, należy ograniczyć dostęp do urządzeń tylko do zaufanych użytkowników.
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Original NVD description (English source)
The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a PF_NETLINK socket, which allows local users to execute arbitrary code and gain root privileges via a negative index that bypasses a maximum-only signed integer check in the DirectVolume::handlePartitionAdded method, which triggers memory corruption, as demonstrated by Gingerbreak.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

