ZyXEL P660HN-T v2 hard-coded password

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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in ZyXEL P660HN-T v2. This impacts an unknown function. This manipulation causes hard-coded password. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to change the configuration settings.

Detailsinfo

A vulnerability classified as critical was found in ZyXEL P660HN-T v2 (Router Operating System) (version now known). Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a hard-coded password vulnerability. The CWE definition for the vulnerability is CWE-259. The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 12/26/2016 as 2910 as not defined advisory (Website) via Securiteam. It is possible to read the advisory at blogs.securiteam.com. The vendor was not involved in the public release. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1078.001 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at blogs.securiteam.com. It is declared as functional.

It is possible to mitigate the problem by applying the configuration setting . The advisory contains the following remark:

We notified ZyXEL of the vulnerabilities back in July 2016, repeated attempts to re-establish contact and get some answer on the status of the patches for these vulnerabilities went unanswered.

The entries VDB-94801, VDB-94802, VDB-94803 and VDB-94804 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

ZyXEL

Name

P660HN-T v2

License

commercial

Website

Vendor: https://www.zyxel.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: 🔍

Exploitinginfo

Class: Hard-coded password
CWE: CWE-259 / CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Download: 🔍
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: Config
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/26/2016 🔍
12/26/2016 +0 days 🔍
01/02/2017 +7 days 🔍
07/12/2020 +1287 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: 2910⛔
Status: Not defined

GCVE (VulDB): GCVE-100-94807
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/02/2017 09:59
Updated: 07/12/2020 09:21
Changes: 01/02/2017 09:59 (45), 07/12/2020 09:21 (2)
Complete: 🔍
Cache ID: 216::103