CVE-2009-1890
HighSummary
Funkcja stream_reqbody_cl w mod_proxy_http.c w module mod_proxy w serwerze Apache HTTP przed wersją 2.3.3 nieprawidłowo obsługuje ilość przesyłanych danych, która przekracza wartość Content-Length, co pozwala zdalnym atakującym na wywołanie odmowy usługi (zużycie CPU) poprzez spreparowane żądania.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do przeciążenia serwera, co prowadzi do spadku wydajności i dostępności usług. Organizacja może doświadczyć przerw w działaniu aplikacji oraz zwiększonego obciążenia zasobów serwera.
Recommendation
Zaleca się aktualizację serwera Apache HTTP do wersji 2.3.3 lub nowszej, aby usunąć tę podatność. Dodatkowo warto monitorować ruch sieciowy w celu wykrywania potencjalnych prób ataków.
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Original NVD description (English source)
The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server before 2.3.3, when a reverse proxy is configured, does not properly handle an amount of streamed data that exceeds the Content-Length value, which allows remote attackers to cause a denial of service (CPU consumption) via crafted requests.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

