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

A vulnerability was found in Cisco ASR 903 and ASR 920 15.4(3)S3.15 (Router Operating System). It has been rated as problematic. Affected by this issue is an unknown code block of the component RSP2 Card. The manipulation as part of a IPv6 Packet leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

A vulnerability in Cisco ASR 903 or ASR 920 Series Devices running with an RSP2 card could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on a targeted system because of incorrect IPv6 Packet Processing. More Information: CSCuy94366. Known Affected Releases: 15.4(3)S3.15. Known Fixed Releases: 15.6(2)SP 15.6(1.31)SP.

The bug was discovered 04/05/2017. The weakness was published 04/07/2017 with Cisco as cisco-sa-20170405-asr as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2017-6603 since 03/09/2017. Access to the local network is required for this attack. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 15.6(2)SP or 15.6(1.31)SP eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97450†).

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• ASR 903
• ASR 920

Version

• 15.4(3)S3.15

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: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

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: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

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: 103403
OpenVAS Name: Cisco ASR 903 and ASR 920 Series Devices IPv6 Packet Processing Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ASR 903/ASR 920 15.6(2)SP/15.6(1.31)SP

Timelineinfo

03/09/2017 🔍
04/05/2017 +27 days 🔍
04/05/2017 +0 days 🔍
04/07/2017 +2 days 🔍
04/07/2017 +0 days 🔍
04/08/2017 +1 days 🔍
11/27/2022 +2059 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170405-asr
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6603 (🔍)
SecurityFocus: 97450 - Cisco ASR 903 and ASR 920 Series CVE-2017-6603 Denial of Service Vulnerability
OSVDB: - CVE-2017-6603 - Cisco - Multiple Products - Denial of Service Issue
SecurityTracker: 1038185

Entryinfo

Created: 04/08/2017 10:24 AM
Updated: 11/27/2022 02:53 PM
Changes: 04/08/2017 10:24 AM (68), 08/27/2020 04:11 PM (6), 11/27/2022 02:53 PM (4)
Complete: 🔍
Cache ID: 35:81E:40

Discussion

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