Cisco ASR 5000 19.1.0.61559/19.2.0 BGP 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

Summaryinfo

A vulnerability was found in Cisco ASR 5000 19.1.0.61559/19.2.0 and classified as problematic. The affected element is an unknown function of the component BGP Handler. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2015-6351. There is no exploit available.

Detailsinfo

A vulnerability was found in Cisco ASR 5000 19.1.0.61559/19.2.0 (Router Operating System). It has been declared as problematic. This vulnerability affects an unknown code of the component BGP 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 ASR 5500 System Architecture Evolution (SAE) Gateway devices with software 19.1.0.61559 and 19.2.0 allow remote attackers to cause a denial of service (BGP process restart) via a crafted header in a BGP packet, aka Bug ID CSCuw65781.

The weakness was shared 10/28/2015 as cisco-sa-20151028-asr as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2015-6351 since 08/17/2015. The exploitation appears to be easy. 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.

The vulnerability is also documented in the databases at X-Force (107685), SecurityFocus (BID 77355†) and Vulnerability Center (SBV-54066†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Cisco

Name

ASR 5000

Version

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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

08/17/2015 🔍
10/28/2015 +72 days 🔍
10/28/2015 +0 days 🔍
10/30/2015 +2 days 🔍
10/30/2015 +0 days 🔍
11/01/2015 +2 days 🔍
06/25/2022 +2428 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20151028-asr
Status: Confirmed

CVE: CVE-2015-6351 (🔍)
GCVE (CVE): GCVE-0-2015-6351
GCVE (VulDB): GCVE-100-78964
X-Force: 107685 - Cisco ASR 5500 BGP denial of service
SecurityFocus: 77355
SecurityTracker: 1034024
Vulnerability Center: 54066 - [cisco-sa-20151028-asr] Cisco ASR 5500 SAE Gateway Remote DoS Vulnerability in BGP, Medium

Entryinfo

Created: 10/30/2015 09:40
Updated: 06/25/2022 14:47
Changes: 10/30/2015 09:40 (39), 03/02/2018 09:43 (20), 06/25/2022 14:47 (3)
Complete: 🔍
Cache ID: 216::103