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

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.

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) and Tenable (17788). Similar entry is available at 17476.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

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VulDB CVSS-B Score: 🔍
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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: 🔍
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CVSSv2info

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Exploitinginfo

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

Local: No
Remote: Yes

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

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Nessus ID: 17788
Nessus Name: Cisco EIGRP Multiple Vulnerabilities
Nessus File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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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 🔍
06/16/2019 +1775 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2002-2208 (🔍)
X-Force: 10903
SecurityTracker: 1005840
Vulnerability Center: 10912 - Cisco IOS DoS via Spoofed EIGRP Neighbor Announcements, High
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

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

Entryinfo

Created: 08/06/2014 12:32
Updated: 06/16/2019 09:23
Changes: 08/06/2014 12:32 (87), 06/16/2019 09:23 (3)
Complete: 🔍

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