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.
6.2	$0-$5k	0.00

A vulnerability was found in Cisco IOS up to 15.3(1)T2 (Router Operating System). It has been classified as critical. This affects an unknown code of the component SSL VPN Implementation. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

The SSL VPN implementation in Cisco IOS 15.3(1)T2 and earlier allows remote authenticated users to cause a denial of service (interface queue wedge) via crafted DTLS packets in an SSL session, aka Bug IDs CSCuh97409 and CSCud90568.

The weakness was released 11/13/2013 as Cisco IOS Software SSL VPN Interface Queue Wedge Denial of Service Vulnerability as confirmed alert (Website). It is possible to read the advisory at tools.cisco.com. The public release was coordinated with Cisco. This vulnerability is uniquely identified as CVE-2013-6686 since 11/07/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS

Version

• 15.3(1)T2

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: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

11/07/2013 🔍
11/13/2013 +6 days 🔍
11/13/2013 +0 days 🔍
11/13/2013 +0 days 🔍
11/17/2013 +4 days 🔍
11/17/2013 +0 days 🔍
11/20/2013 +3 days 🔍
05/15/2017 +1272 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Cisco IOS Software SSL VPN Interface Queue Wedge Denial of Service Vulnerability
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-6686 (🔍)
Vulnerability Center: 42315 - Cisco iOS Remote Authenticated Denial of Service Vulnerability via Malicious DTLS Traffic, Medium
SecurityFocus: 63699
Secunia: 55694 - Cisco IOS SSL VPN Interface DTLS Packets Handling Denial of Service Vulnerability, Not Critical
OSVDB: 99752

Entryinfo

Created: 11/20/2013 09:10
Updated: 05/15/2017 11:34
Changes: 11/20/2013 09:10 (44), 05/15/2017 11:34 (21)
Complete: 🔍
Committer: olku

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