VDB-224968 · CVE-2023-1749 · icsa-23-094-01

Nexx NXG-100B/NXG-200/NXPG-100W/NXAL-100 API Request authorization

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Nexx NXG-100B, NXG-200, NXPG-100W and NXAL-100. The impacted element is an unknown function of the component API Request Handler. Executing a manipulation can lead to authorization. This vulnerability appears as CVE-2023-1749. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in Nexx NXG-100B, NXG-200, NXPG-100W and NXAL-100 (affected version not known) and classified as problematic. This vulnerability affects some unknown functionality of the component API Request Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect integrity, and availability. CVE summarizes:

The listed versions of Nexx Smart Home devices lack proper access control when executing actions. An attacker with a valid NexxHome deviceId could send API requests that the affected devices would execute.

The weakness was presented 04/05/2023 as icsa-23-094-01. The advisory is shared for download at cisa.gov. This vulnerability was named CVE-2023-1749 since 03/30/2023. There are neither technical details nor an exploit publicly available.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Nexx

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (ICS-CERT): 🔍

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/30/2023 🔍
04/05/2023 +6 days 🔍
04/05/2023 +0 days 🔍
04/05/2023 +0 days 🔍

Sourcesinfo

Advisory: icsa-23-094-01
Status: Not defined

CVE: CVE-2023-1749 (🔍)
GCVE (CVE): GCVE-0-2023-1749
GCVE (VulDB): GCVE-100-224968

Entryinfo

Created: 04/05/2023 07:34
Changes: 04/05/2023 07:34 (47)
Complete: 🔍
Cache ID: 216::103