Extended Interior Gateway Routing Protocol 1.2 Authentication Code denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Extended Interior Gateway Routing Protocol 1.2. Affected by this issue is some unknown functionality of the component Authentication Code. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2005-4437. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Extended Interior Gateway Routing Protocol 1.2. This issue affects some unknown processing of the component Authentication Code. 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 confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 12/19/2005. The weakness was disclosed 12/20/2005 by Andrew (Website). The advisory is shared at vupen.com. The identification of this vulnerability is CVE-2005-4437 since 12/21/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (23746), SecurityFocus (BID 15970†), OSVDB (22109†), SecurityTracker (ID 1015382†) and Vulnerability Center (SBV-10106†). The entry VDB-27676 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/19/2005 🔍
12/19/2005 +0 days 🔍
12/20/2005 +1 days 🔍
12/20/2005 +0 days 🔍
12/20/2005 +0 days 🔍
12/21/2005 +1 days 🔍
01/03/2006 +13 days 🔍
03/12/2015 +3355 days 🔍
06/13/2019 +1554 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Researcher: Andrew
Status: Confirmed

CVE: CVE-2005-4437 (🔍)
GCVE (CVE): GCVE-0-2005-4437
GCVE (VulDB): GCVE-100-27677

OVAL: 🔍

X-Force: 23746
SecurityFocus: 15970 - Cisco EIGRP Protocol HELLO Packet Replay Vulnerability
OSVDB: 22109 - RETIRED:2005-4437 - Cisco - EIGRP - Protocol HELLO Packet Replay Issue
SecurityTracker: 1015382
Vulnerability Center: 10106 - [cisco-response-20051220-eigrp] Cisco IOS EIGRP Sniffing \x26 Replaying Messages \x26 DoS via Error in Che, Medium
Vupen: ADV-2005-3008

See also: 🔍

Entryinfo

Created: 03/12/2015 11:11
Updated: 06/13/2019 09:06
Changes: 03/12/2015 11:11 (64), 06/13/2019 09:06 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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