CVE-2008-5624
HighSummary
PHP w wersjach przed 5.2.7 nieprawidłowo inicjalizuje globalne zmienne page_uid i page_gid dla funkcji SAPI php_getuid. To umożliwia atakującym, zależnie od kontekstu, obejście ograniczeń safe_mode poprzez ustawienia zmiennych, które powinny być zarezerwowane dla użytkownika root.
Risk Assessment
Organizacje mogą być narażone na nieautoryzowany dostęp do zasobów systemowych, co może prowadzić do poważnych naruszeń bezpieczeństwa. Atakujący mogą wykorzystać tę podatność do uzyskania uprawnień, które normalnie są zastrzeżone.
Recommendation
Zaleca się aktualizację PHP do wersji 5.2.7 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto rozważyć włączenie dodatkowych środków zabezpieczających, takich jak monitorowanie i ograniczenie dostępu do krytycznych zmiennych konfiguracyjnych.
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Original NVD description (English source)
PHP 5 before 5.2.7 does not properly initialize the page_uid and page_gid global variables for use by the SAPI php_getuid function, which allows context-dependent attackers to bypass safe_mode restrictions via variable settings that are intended to be restricted to root, as demonstrated by a setting of /etc for the error_log variable.