Cisco Carrier Routing System 5.1/5.1.4 IPv6-over-MPLS Packet resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Cisco Carrier Routing System 5.1/5.1.4. This affects an unknown function of the component IPv6-over-MPLS Packet Handler. Executing a manipulation can lead to resource management. This vulnerability is registered as CVE-2016-6401. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability has been found in Cisco Carrier Routing System 5.1/5.1.4 and classified as problematic. This vulnerability affects some unknown functionality of the component IPv6-over-MPLS Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

Cisco Carrier Routing System (CRS) 5.1 and 5.1.4, as used in CRS Carrier Grade Services for CRS-1 and CRS-3 devices, allows remote attackers to cause a denial of service (line-card reload) via crafted IPv6-over-MPLS packets, aka Bug ID CSCva32494.

The weakness was published 09/17/2016 with Cisco (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2016-6401 since 07/26/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

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 vulnerability database at SecurityFocus (BID 92964†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Cisco

Name

• Carrier Routing System

Version

• 5.1
• 5.1.4

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 54373
OpenVAS Name: Cisco Carrier Routing System IPv6 Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

07/26/2016 🔍
09/14/2016 +50 days 🔍
09/16/2016 +2 days 🔍
09/17/2016 +1 days 🔍
09/18/2016 +1 days 🔍
09/19/2022 +2192 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: tools.cisco.com
Organization: Cisco
Status: Not defined

CVE: CVE-2016-6401 (🔍)
GCVE (CVE): GCVE-0-2016-6401
GCVE (VulDB): GCVE-100-91660
SecurityFocus: 92964 - Cisco IOS XR for Cisco Carrier Routing System (CRS) CVE-2016-6401 Denial of Service Vulnerability
SecurityTracker: 1036830

Entryinfo

Created: 09/18/2016 09:59
Updated: 09/19/2022 07:05
Changes: 09/18/2016 09:59 (52), 04/18/2019 22:46 (12), 09/19/2022 07:05 (2)
Complete: 🔍
Cache ID: 216:8C6:103

Once again VulDB remains the best source for vulnerability data.

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