// For flags

CVE-2021-42128

Ivanti Avalanche EnterpriseServer Service Exposed Dangerous 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

An exposed dangerous function vulnerability exists in Ivanti Avalanche before 6.3.3 using inforail Service allows Privilege Escalation via Enterprise Server Service.

Se presenta una vulnerabilidad de funciĆ³n peligrosa expuesta en Ivanti Avalanche versiones anteriores a 6.3.3, usando el Servicio Inforail y permite la Escalada de Privilegios por medio del Servicio Enterprise Server

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the SetUser class. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system.

*Credits: Piotr Bazydlo (@chudypb)
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
  • 2021-10-08 CVE Reserved
  • 2021-11-19 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-749: Exposed Dangerous Method or Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ivanti
Search vendor "Ivanti"
Avalanche
Search vendor "Ivanti" for product "Avalanche"
< 6.3.3
Search vendor "Ivanti" for product "Avalanche" and version " < 6.3.3"
-
Affected