The pa_modify_accounts function in auth.dll in unifid.exe in NetIQ Privileged User Manager 2.3.x before 2.3.1 HF2 does not require authentication for the modifyAccounts method, which allows remote attackers to change the passwords of administrative accounts via a crafted application/x-amf request.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.