// For flags

CVE-2021-32951

Advantech WebAccess/NMS Improper Authentication

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.

WebAccess/NMS (versiones anteriores a v3.0.3_Build6299) presenta una vulnerabilidad de autenticación inapropiada, que puede permitir a usuarios no autorizados visualizar los recursos supervisados y controlados por WebAccess/NMS, así como las direcciones IP y los nombres de todos los dispositivos gestionados por medio de WebAccess/NMS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Advantech WebAccess/NMS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of the DashBoardAction endpoint of the web server. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose information from the application.

*Credits: Selim Enes Karaduman (@Enesdex), working with Trend Micro’s Zero Day Initiative, reported this vulnerability to CISA.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-13 CVE Reserved
  • 2021-07-19 CVE Published
  • 2024-04-26 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
https://us-cert.cisa.gov/ics/advisories/icsa-21-229-02 2021-10-29
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Advantech
Search vendor "Advantech"
 Webaccess\/nms
Search vendor "Advantech" for product "Webaccess\/nms"
 <= 3.0.3
Search vendor "Advantech" for product "Webaccess\/nms" and version " <= 3.0.3"
-
Affected