MD5 Neighbor Authentication in Extended Interior Gateway Routing Protocol (EIGRP)...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.vupen.com/english/advisories/2005/3008
- http://www.securityfocus.com/archive/1/419830/100/0/threaded
- http://www.securityfocus.com/bid/15970
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5741
- http://www.securityfocus.com/archive/1/419898/100/0/threaded
- http://securityreason.com/securityalert/274
- http://marc.info/?l=full-disclosure&m=113504451523186&w=2
- http://securitytracker.com/id?1015382
- http://lists.grok.org.uk/pipermail/full-disclosure/2005-December/040332.html
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.