CVE-2008-2476
HighSummary
Implementacja protokołu odkrywania sąsiadów IPv6 (NDP) w systemach FreeBSD 6.3 do 7.1, OpenBSD 4.2 i 4.3, NetBSD, Force10 FTOS przed E7.7.1.1, Juniper JUNOS oraz Wind River VxWorks 5.x do 6.4 nie weryfikuje pochodzenia wiadomości odkrywania sąsiadów. To umożliwia zdalnym atakującym spowodowanie odmowy usługi (utrata łączności) lub odczyt prywatnego ruchu sieciowego poprzez sfałszowaną wiadomość, która modyfikuje Forward Information Base (FIB).
Risk Assessment
Brak weryfikacji pochodzenia wiadomości NDP stwarza ryzyko odmowy usługi oraz naraża poufność danych w sieci, co może prowadzić do poważnych problemów z bezpieczeństwem w organizacji.
Recommendation
Zaleca się aktualizację systemów do najnowszych wersji, które zawierają poprawki bezpieczeństwa oraz wdrożenie dodatkowych mechanizmów weryfikacji wiadomości NDP.
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Original NVD description (English source)
The IPv6 Neighbor Discovery Protocol (NDP) implementation in (1) FreeBSD 6.3 through 7.1, (2) OpenBSD 4.2 and 4.3, (3) NetBSD, (4) Force10 FTOS before E7.7.1.1, (5) Juniper JUNOS, and (6) Wind River VxWorks 5.x through 6.4 does not validate the origin of Neighbor Discovery messages, which allows remote attackers to cause a denial of service (loss of connectivity) or read private network traffic via a spoofed message that modifies the Forward Information Base (FIB).