Corega CG-WLR300NX up to 1.20 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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Corega CG-WLR300NX up to 1.20 and classified as critical. The impacted element is an unknown function. This manipulation causes access control. This vulnerability is registered as CVE-2016-7811. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability was found in Corega CG-WLR300NX up to 1.20. It has been declared as critical. Affected by this vulnerability is an unknown part. The manipulation with an unknown input 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, integrity, and availability. The summary by CVE is:

Corega CG-WLR300NX firmware Ver. 1.20 and earlier allows an attacker on the same network segment to bypass access restriction to perform arbitrary operations via unspecified vectors.

The bug was discovered 11/11/2016. The weakness was published 06/09/2017 by Satoshi Ogawa with Mitsui Bussan Secure Directions, Inc. (Website). It is possible to read the advisory at corega.jp. This vulnerability is known as CVE-2016-7811 since 09/09/2016. The exploitation appears to be easy. The attack needs to be done within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 210 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 SecurityFocus (BID 94248†). Similar entries are available at VDB-102173 and VDB-102174. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Corega

Name

• CG-WLR300NX

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/09/2016 🔍
11/10/2016 +62 days 🔍
11/11/2016 +1 days 🔍
06/09/2017 +210 days 🔍
06/09/2017 +0 days 🔍
06/10/2017 +1 days 🔍
10/15/2019 +857 days 🔍

Sourcesinfo

Advisory: corega.jp
Researcher: Satoshi Ogawa
Organization: Mitsui Bussan Secure Directions, Inc.
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7811 (🔍)
GCVE (CVE): GCVE-0-2016-7811
GCVE (VulDB): GCVE-100-102175
SecurityFocus: 94248 - Corega CG-WLR300NX Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 06/10/2017 08:50
Updated: 10/15/2019 17:00
Changes: 06/10/2017 08:50 (58), 10/15/2019 17:00 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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