// For flags

CVE-2020-10625

Advantech WebAccess/NMS UsersInputAction Missing Authentication for Critical Function Authentication Bypass Vulnerability

Severity Score

9.8
*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 3.0.2) allows an unauthenticated remote user to create a new admin account.

WebAccess/NMS (versiones anteriores a 3.0.2), permite a un usuario no autenticado remoto crear una nueva cuenta de administrador.

This vulnerability allows remote attackers to bypass authentication on affected installations of Advantech WebAccess/NMS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of calls to the usersInputAction.action endpoint. Authentication is missing for the critical function of creating new administrator accounts. An attacker can leverage this vulnerability to create new accounts, leading to further compromise.

*Credits: rgod
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-03-16 CVE Reserved
  • 2020-04-08 CVE Published
  • 2023-07-27 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-306: Missing Authentication for Critical Function
CAPEC
References (1)
URL Tag Source
https://www.us-cert.gov/ics/advisories/icsa-20-098-01 Third Party Advisory
URL Date SRC
URL Date SRC
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"
 < 3.0.2
Search vendor "Advantech" for product "Webaccess\/nms" and version " < 3.0.2"
-
Affected