Cibele Thinfinity VirtualUI 2.5.41.0 User Enumeration

2021.12.17
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-287


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

# Exploit Title: Cibele Thinfinity VirtualUI 2.5.41.0 - User Enumeration # Date: 13/12/2021 # Exploit Author: Daniel Morales, IT Security Team - ARHS Spikeseed # Vendor Homepage: https://www.cybelesoft.com # Software Link: https://www.cybelesoft.com/thinfinity/virtualui/ # Version: vulnerable < v3.0 # Tested on: Microsoft Windows # CVE: CVE-2021-44848 How it works: By accessing the vector, an attacker can determine if a username exists thanks to the message returned; it can be presented in different languages according to the configuration of VirtualUI. Common users are administrator, admin, guest... Payload: The vulnerable vector is "https://example.com/changePassword?username=USERNAME" where "USERNAME" need to be brute-forced. Reference: https://github.com/cybelesoft/virtualui/issues/1


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