Cisco IOS up to R12.x VLAN Trunking Protocol Configuration resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS up to R12.x. It has been classified as critical. This impacts an unknown function of the component VLAN Trunking Protocol Configuration. This manipulation with the input 0x7FFFFFFF causes resource management. The identification of this vulnerability is CVE-2006-4774. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS up to R12.x (Router Operating System). Affected by this vulnerability is an unknown code block of the component VLAN Trunking Protocol Configuration. The manipulation with the input value 0x7FFFFFFF leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to cause a denial of service by sending a VTP version 1 summary frame with a VTP version field value of 2.

The weakness was shared 09/14/2006 by Felix Lindner (FX) with Phenoelit (Website). It is possible to read the advisory at phenoelit.de. This vulnerability is known as CVE-2006-4774 since 09/13/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (28924), SecurityFocus (BID 19998†), OSVDB (28775†), Secunia (SA21896†) and SecurityTracker (ID 1016843†). The entries VDB-2538, VDB-2541, VDB-2540 and VDB-32276 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
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: Resource management
CWE: CWE-399 / 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: Upgrade
Status: 🔍
Patch: cisco.com

Timelineinfo

09/13/2006 🔍
09/13/2006 +0 days 🔍
09/13/2006 +0 days 🔍
09/13/2006 +0 days 🔍
09/14/2006 +1 days 🔍
09/14/2006 +0 days 🔍
09/14/2006 +0 days 🔍
09/18/2006 +3 days 🔍
01/14/2025 +6693 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: phenoelit.de
Researcher: Felix Lindner (FX)
Organization: Phenoelit
Status: Confirmed

CVE: CVE-2006-4774 (🔍)
GCVE (CVE): GCVE-0-2006-4774
GCVE (VulDB): GCVE-100-2539

OVAL: 🔍

CERT: 🔍
X-Force: 28924 - Cisco IOS VTP version denial of service
SecurityFocus: 19998
Secunia: 21896 - Cisco IOS VTP Multiple Vulnerabilities, Moderately Critical
OSVDB: 28775 - Cisco IOS VTP Version Field DoS
SecurityTracker: 1016843
Vupen: ADV-2006-3600

See also: 🔍

Entryinfo

Created: 09/18/2006 11:04
Updated: 01/14/2025 06:54
Changes: 09/18/2006 11:04 (73), 04/22/2018 13:03 (9), 01/14/2025 06:54 (17)
Complete: 🔍
Cache ID: 216:7A4:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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