CVE-2005-4437
High
Description
MD5 Neighbor Authentication in Extended Interior Gateway Routing Protocol (EIGRP) 1.2, as implemented in Cisco IOS 11.3 and later, does not include the Message Authentication Code (MAC) in the checksum, which allows remote attackers to sniff message hashes and (1) replay EIGRP HELLO messages or (2) cause a denial of service by sending a large number of spoofed EIGRP neighbor announcements, which results in an ARP storm on the local network.
SeverityHigh
CVSS7.5
Exploit probability—
ProductExtended Interior Gateway Routing Protocol
PublishedDec 21, 2005
First seenDec 21, 2005
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| extended_interior_gateway_routing_protocol extended_interior_gateway_routing_protocol | 1.2 | — |
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