VDB-107500 · CVE-2017-14000 · BID 100953

Ctek SkyRouter 4200/SkyRouter 4400 up to 6.00 improper authentication

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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Ctek SkyRouter 4200 and SkyRouter 4400 up to 6.00. This affects an unknown function. Executing a manipulation can lead to improper authentication. This vulnerability is registered as CVE-2017-14000. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Ctek SkyRouter 4200 and SkyRouter 4400 up to 6.00 (Router Operating System) and classified as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An Improper Authentication issue was discovered in Ctek SkyRouter Series 4200 and 4400, all versions prior to V6.00.11. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access the application without authenticating.

The bug was discovered 09/21/2017. The weakness was published 10/05/2017 by Maxim Rupp (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2017-14000 since 08/30/2017. 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 was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.00.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100953†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Ctek

Name

Version

6.00

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.4
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: Improper authentication
CWE: CWE-287
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SkyRouter 4200/SkyRouter 4400 6.00.11

Timelineinfo

08/30/2017 🔍
09/21/2017 +22 days 🔍
09/21/2017 +0 days 🔍
10/04/2017 +13 days 🔍
10/05/2017 +1 days 🔍
10/05/2017 +0 days 🔍
11/22/2019 +778 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Maxim Rupp
Status: Not defined

CVE: CVE-2017-14000 (🔍)
GCVE (CVE): GCVE-0-2017-14000
GCVE (VulDB): GCVE-100-107500
SecurityFocus: 100953 - Ctek SkyRouter CVE-2017-14000 Authentication Bypass Vulnerability

Entryinfo

Created: 10/05/2017 15:22
Updated: 11/22/2019 10:53
Changes: 10/05/2017 15:22 (61), 11/22/2019 10:53 (4)
Complete: 🔍
Cache ID: 216::103