VDB-107305 · CVE-2017-14942 · EDB-ID 42916

Intelbras WRN 150 Configuration File RouterCfm.cfg Request access control

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Intelbras WRN 150. Affected by this vulnerability is an unknown functionality of the file cgi-bin/DownloadCfg/RouterCfm.cfg of the component Configuration File. This manipulation as part of Request causes access control. This vulnerability is registered as CVE-2017-14942. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Intelbras WRN 150 (affected version not known). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the file cgi-bin/DownloadCfg/RouterCfm.cfg of the component Configuration File. The manipulation as part of a Request leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. The summary by CVE is:

Intelbras WRN 150 devices allow remote attackers to read the configuration file, and consequently bypass authentication, via a direct request for cgi-bin/DownloadCfg/RouterCfm.cfg containing an admin:language=pt cookie.

The bug was discovered 09/28/2017. The weakness was published 09/30/2017 as EDB-ID 42916 as not defined exploit (Exploit-DB). The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2017-14942 since 09/29/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (42916). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Intelbras

Name

WRN 150

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 800164
OpenVAS Name: Intelbras Roteador Wireless N WRN Device Authentication Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

09/28/2017 🔍
09/29/2017 +1 days 🔍
09/29/2017 +0 days 🔍
09/30/2017 +1 days 🔍
09/30/2017 +0 days 🔍
09/30/2017 +0 days 🔍
09/30/2017 +0 days 🔍
11/24/2019 +785 days 🔍

Sourcesinfo

Advisory: EDB-ID 42916
Status: Not defined

CVE: CVE-2017-14942 (🔍)
GCVE (CVE): GCVE-0-2017-14942
GCVE (VulDB): GCVE-100-107305
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/30/2017 11:35
Updated: 11/24/2019 20:56
Changes: 09/30/2017 11:35 (70), 11/24/2019 20:56 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.