Microsoft .NET Framework contains a flaw that is triggered by the way ASP.NET improperly parses usernames. This may allow an attacker to bypass authentication.
Classification
Location:
Remote / Network Access
Attack Type:
Authentication Management,
Input Manipulation
Impact:
Loss of Integrity
Solution:
Patch / RCS
Exploit:
Exploit Public
Disclosure:
Vendor Verified,
Coordinated Disclosure
Solution
Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability. Check the vendor advisory or solution in the references section.