Cisco IOS up to 12.3t MPLS Packet config

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco IOS 12.1t/12.2/12.2t/12.3/12.3t. Impacted is an unknown function of the component MPLS Packet Handler. Such manipulation leads to config. This vulnerability is referenced as CVE-2005-0197. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS 12.1t/12.2/12.2t/12.3/12.3t (Router Operating System). It has been rated as critical. Affected by this issue is an unknown code block of the component MPLS Packet Handler. The manipulation with an unknown input leads to a config vulnerability. Using CWE to declare the problem leads to CWE-16. Impacted is availability. CVE summarizes:

Cisco IOS 12.1T, 12.2, 12.2T, 12.3 and 12.3T, with Multi Protocol Label Switching (MPLS) installed but disabled, allows remote attackers to cause a denial of service (device reload) via a crafted packet sent to the disabled interface.

The bug was discovered 01/26/2005. The weakness was published 01/27/2005 with Cisco (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2005-0197 since 01/31/2005. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.004.

The vulnerability scanner Nessus provides a plugin with the ID 17630 (Cisco IOS Multi Protocol Label Switching (MPLS) Packet Remote DoS (CSCeb56909)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO, running in the context l and relying on port 161. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38492 (Cisco IOS Multi Protocol Label Switching Remote Denial of Service Vulnerability).

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. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19071), Tenable (17630), SecurityFocus (BID 12369†), OSVDB (13191†) and Secunia (SA14031†). Similar entries are available at VDB-1162 and VDB-1164. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Config
CWE: CWE-16
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 17630
Nessus Name: Cisco IOS Multi Protocol Label Switching (MPLS) Packet Remote DoS (CSCeb56909)
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: 🔍

0-Day Time: 🔍

Patch: cisco.com

Timelineinfo

01/26/2005 🔍
01/26/2005 +0 days 🔍
01/26/2005 +0 days 🔍
01/26/2005 +0 days 🔍
01/27/2005 +1 days 🔍
01/27/2005 +0 days 🔍
01/27/2005 +0 days 🔍
01/27/2005 +0 days 🔍
01/30/2005 +2 days 🔍
01/31/2005 +1 days 🔍
01/31/2005 +0 days 🔍
03/25/2005 +53 days 🔍
05/02/2005 +38 days 🔍
07/05/2025 +7369 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: http://www.cisco.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2005-0197 (🔍)
GCVE (CVE): GCVE-0-2005-0197
GCVE (VulDB): GCVE-100-1160

OVAL: 🔍

CERT: 🔍
X-Force: 19071 - Cisco IOS MPLS processing denial of service, Medium Risk
SecurityFocus: 12369 - Cisco IOS Multi Protocol Label Switching Remote Denial Of Service Vulnerability
Secunia: 14031 - Cisco IOS MPLS Packet Processing Denial of Service, Less Critical
OSVDB: 13191 - Cisco IOS Multi Protocol Label Switching (MPLS) Packet Remote DoS
SecurityTracker: 1013015
Vulnerability Center: 6933 - [cisco-sa-20050126-les] DoS in Cisco IOS 12.0 - 12.3 via MPLS, Medium

See also: 🔍

Entryinfo

Created: 01/31/2005 10:42
Updated: 07/05/2025 16:40
Changes: 01/31/2005 10:42 (94), 07/01/2019 09:49 (2), 12/16/2024 11:09 (16), 07/05/2025 16:40 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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