CVE-2005-4437

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Summary

CVECVE-2005-4437
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2005-12-21 01:03:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionMD5 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.

Risk And Classification

Primary CVSS: v2.0 7.5 from [email protected]

AV:N/AC:L/Au:N/C:P/I:P/A:P

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Extended Interior Gateway Routing Protocol Extended Interior Gateway Routing Protocol 1.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[Full-disclosure] Authenticated EIGRP DoS / Information leak af854a3a-2127-422b-91ae-364da2661108 lists.grok.org.uk Vendor Advisory
'[Full-disclosure] RE: Authenticated EIGRP DoS / Information leak' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
SecurityTracker.com Archives - Cisco IOS EIGRP Bugs Let Remote Users Deny Service or Obtain Potentially Sensitive Information af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
Cisco EIGRP Protocol HELLO Packet Replay Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Authenticated EIGRP DoS / Information leak - SecurityReason.com af854a3a-2127-422b-91ae-364da2661108 securityreason.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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