Cisco IOS XR 5.0.1.BASE RSVP Packet input validation

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.
4.6	$0-$5k	0.00

A vulnerability has been found in Cisco IOS XR 5.0.1.BASE (Router Operating System) and classified as problematic. This vulnerability affects an unknown code of the component RSVP Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Cisco IOS XR 5.1 and earlier allows remote attackers to cause a denial of service (process reload) via a malformed RSVP packet, aka Bug ID CSCuq12031.

The weakness was released 09/18/2014 with Cisco as CSCuq12031 as confirmed security notice (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2014-3376 since 05/07/2014. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 79625 , which helps to determine the existence of the flaw in a target environment. It is .

Upgrading eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (96065) and Tenable (79625). Additional details are provided at tools.cisco.com. Entries connected to this vulnerability are available at 67667, 67668 and 67669.

Productinfo

Type

Router Operating System

Vendor

Cisco

Name

IOS XR

Version

5.0.1.BASE

License

commercial

Support

end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 79625
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: software.cisco.com

Timelineinfo

05/07/2014 🔍
09/18/2014 +134 days 🔍
09/18/2014 +0 days 🔍
09/18/2014 +0 days 🔍
09/19/2014 +1 days 🔍
09/19/2014 +0 days 🔍
09/20/2014 +1 days 🔍
09/20/2014 +0 days 🔍
09/21/2014 +1 days 🔍
09/23/2014 +2 days 🔍
11/28/2014 +66 days 🔍
02/20/2022 +2641 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuq12031
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3376 (🔍)
X-Force: 96065 - Cisco IOS XR RSVP denial of service, Medium Risk
SecurityTracker: 1030878 - Cisco IOS XR Packet Processing Flaws Let Remote and Remote Authenticated Users Deny Service
Vulnerability Center: 46219 - Cisco IOS XR <=5.1 Remote DoS via Malformed RSVP Packets, Medium
SecurityFocus: 69956 - Cisco IOS XR Software CVE-2014-3376 RSVP Packet Parsing Denial of Service Vulnerability
Secunia: 59638 - Cisco IOS XR RSVP Packet Handling Denial of Service Vulnerability, Less Critical

scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/23/2014 13:19
Updated: 02/20/2022 20:44
Changes: 09/23/2014 13:19 (81), 06/06/2017 08:43 (3), 02/20/2022 20:44 (3)
Complete: 🔍

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