Vulnerability in Extended Interior Gateway Routing Protocol
CVE-2005-4437
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.024 (83.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Extended Interior Gateway Routing Protocol — versions 1.2
References
- www.vupen.com/english/advisories/2005/3008 (vdb-entry)
- www.securityfocus.com/archive/1/419830/100/0/threaded (mailing-list)
- www.securityfocus.com/bid/15970 (vdb-entry)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:5741 (signature, vdb-entry)
- www.securityfocus.com/archive/1/419898/100/0/threaded (mailing-list)
- securityreason.com/securityalert/274 (third-party-advisory)
- marc.info/ (mailing-list)
- securitytracker.com/id (vdb-entry)
- lists.grok.org.uk/pipermail/full-disclosure/2005-December/040332.html (Vendor Advisory, mailing-list)