Cisco IOS 11.3/12.0/12.1/12.2 EIGRP denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco IOS 11.3/12.0/12.1/12.2. The affected element is an unknown function of the component EIGRP Handler. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2002-2208. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS 11.3/12.0/12.1/12.2 (Router Operating System) and classified as critical. Affected by this issue is an unknown code block of the component EIGRP Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Extended Interior Gateway Routing Protocol (EIGRP), as implemented in Cisco IOS 11.3 through 12.2 and other products, allows remote attackers to cause a denial of service (flood) by sending a large number of spoofed EIGRP neighbor announcements, which results in an ARP storm on the local network.

The bug was discovered 12/18/2002. The weakness was published 10/08/2002 by FX with Arhont Ltd. as confirmed posting (Bugtraq). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2002-2208 since 12/21/2005. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but an exploit is available.

After before and not just, there has been an exploit disclosed. The exploit is available at phenoelit.de. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 17788 (Cisco EIGRP Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43100 (Cisco IOS EIGRP Announcement ARP Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (10903), Tenable (17788), SecurityFocus (BID 6443†), OSVDB (18055†) and Secunia (SA7766†). Similar entry is available at VDB-17476. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 17788
Nessus Name: Cisco EIGRP Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/08/2002 🔍
10/08/2002 +0 days 🔍
12/18/2002 +70 days 🔍
12/18/2002 +0 days 🔍
12/19/2002 +1 days 🔍
12/19/2002 +0 days 🔍
12/20/2002 +1 days 🔍
12/20/2002 +0 days 🔍
12/31/2002 +11 days 🔍
07/19/2005 +931 days 🔍
12/21/2005 +154 days 🔍
04/03/2006 +103 days 🔍
01/10/2012 +2108 days 🔍
08/06/2014 +939 days 🔍
08/29/2025 +4041 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securityfocus.com⛔
Researcher: FX
Organization: Arhont Ltd.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-2208 (🔍)
GCVE (CVE): GCVE-0-2002-2208
GCVE (VulDB): GCVE-100-19850
X-Force: 10903
SecurityFocus: 6443 - Cisco IOS EIGRP Announcement ARP Denial Of Service Vulnerability
Secunia: 7766 - Cisco IOS EIGRP Denial of Service, Less Critical
OSVDB: 18055 - Cisco Spoofed EIGRP Packet Saturation DoS
SecurityTracker: 1005840
Vulnerability Center: 10912 - Cisco IOS DoS via Spoofed EIGRP Neighbor Announcements, High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/06/2014 12:32
Updated: 08/29/2025 15:04
Changes: 08/06/2014 12:32 (87), 06/16/2019 09:23 (3), 08/29/2025 15:04 (19)
Complete: 🔍
Cache ID: 216:C77:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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