A vulnerability has been reported in Force10 FTOS Routers, which can be exploited by malicious people to conduct spoofing attacks, disclose potentially sensitive information, or to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the implementation of the Neighbor Discovery protocol when processing neighbor solicitation requests. This can be exploited to add a fake entry to the router's neighbor cache via a neighbor solicitation request containing a spoofed IPv6 address.
Successful exploitation may allow the interception or disruption of network traffic, but requires that the IPv6 nodes involved in the attack are using the same router.
Solution: The vendor has reportedly fixed the vulnerability in FTOS version E18.104.22.168.
Provided and/or discovered by: US-CERT credits David Miles.
Original Advisory: http://www.kb.cert.org/vuls/id/MAPG-7H2RY7
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