VDB-122627 · CVE-2018-14943 · GCVE-0-2018-14943

Harmonic NSG 9000 hard-coded credentials

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.
8.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Harmonic NSG 9000. Affected is an unknown function. The manipulation with the input nsgadmin/nsgguest/nsgconfig leads to hard-coded credentials. This vulnerability is uniquely identified as CVE-2018-14943. The attack is possible to be carried out remotely. No exploit exists. You should change the configuration settings.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Harmonic NSG 9000 (affected version unknown). This issue affects an unknown functionality. The manipulation with the input value nsgadmin/nsgguest/nsgconfig leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Harmonic NSG 9000 devices have a default password of nsgadmin for the admin account, a default password of nsgguest for the guest account, and a default password of nsgconfig for the config account.

The bug was discovered 07/28/2018. The weakness was disclosed 08/05/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-14943 since 08/05/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the problem by applying the configuration setting .

The entries VDB-122625 and VDB-122626 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Harmonic

Name

NSG 9000

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
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: Config
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/28/2018 🔍
08/05/2018 +7 days 🔍
08/05/2018 +0 days 🔍
08/05/2018 +0 days 🔍
08/06/2018 +1 days 🔍
03/13/2020 +585 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2018-14943 (🔍)
GCVE (CVE): GCVE-0-2018-14943
GCVE (VulDB): GCVE-100-122627
See also: 🔍

Entryinfo

Created: 08/06/2018 06:59
Updated: 03/13/2020 15:07
Changes: 08/06/2018 06:59 (57), 03/13/2020 15:07 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.