Open redirect vulnerability in the web interface in Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, 2010 Update 1, and 2010 Update 2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors, aka "UAG Redirection Spoofing Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12257
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-089