CVE-2023-40060

2FA/MFA Bypass Vulnerability in Serv-U 15.4 and 15.4 Hotfix 1

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability has been identified within Serv-U 15.4 and 15.4 Hotfix 1 that, if exploited, allows an actor to bypass multi-factor/two-factor authentication. The actor must have administrator-level access to Serv-U to perform this action. 15.4. SolarWinds found that the issue was not completely fixed in 15.4 Hotfix 1.

Se ha identificado una vulnerabilidad dentro de Serv-U 15.4 y 15.4 Hotfix 1 que, si se explota, permite a un actor eludir la autenticación multifactor/de dos factores. El actor debe tener acceso de nivel de administrador a Serv-U para realizar esta acción. 15.4.  SolarWinds descubrió que el problema no se solucionó por completo en 15.4 Hotfix 1. 

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Multiple

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-08-08 CVE Reserved
2023-09-07 CVE Published
2025-02-27 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.solarwinds.com/SuccessCenter/s/article/Serv-U-15-4-0-Hotfix-2?language=en_US	2023-09-14
https://www.solarwinds.com/trust-center/security-advisories/CVE-2023-40060	2023-09-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Solarwinds Search vendor "Solarwinds"		Serv-u Search vendor "Solarwinds" for product "Serv-u"				15.4.0 Search vendor "Solarwinds" for product "Serv-u" and version "15.4.0"		-		Affected
Solarwinds Search vendor "Solarwinds"		Serv-u Search vendor "Solarwinds" for product "Serv-u"				15.4.0 Search vendor "Solarwinds" for product "Serv-u" and version "15.4.0"		hotfix1		Affected