CVE-2011-2058
HighSummary
Komponent cat6000-dot1x w Cisco IOS 12.2 przed wersją 12.2(33)SXI7 nieprawidłowo obsługuje zewnętrzną pętlę między parami portów z włączonym dot1x, co pozwala zdalnym atakującym na wywołanie odmowy usługi (burzy ruchu) poprzez nieokreślone wektory, które generują wiele jednostek danych EAPoL.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do zakłócenia działania sieci, co prowadzi do poważnych problemów z dostępnością usług w organizacji.
Recommendation
Zaleca się aktualizację Cisco IOS do wersji 12.2(33)SXI7 lub nowszej, aby usunąć tę podatność oraz monitorowanie ruchu sieciowego w celu wykrycia potencjalnych ataków.
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Original NVD description (English source)
The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle an external loop between a pair of dot1x enabled ports, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many unicast EAPoL Protocol Data Units (PDUs), aka Bug ID CSCtq36336.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

