#microsoft

# Microsoft Security Advisory CVE-2023-33170: .NET Security Feature Bypass Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 2.1 and above. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exist in ASP.NET Core applications where account lockout maximum failed attempts may not be immediately updated, allowing an attacker to try more passwords. ## Discussion Discussion for this issue can be found at https://github.com/dotnet/aspnetcore/issues/49334 ### <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any ASP.NET 7.0 application running on .NET 7.0.8 or earlier. * Any ASP.NET 6.0 application running on .NET 6.0.19 or earlier. * Any ASP.N...

Four of the disclosed vulnerabilities — albeit “important” ones — have been detected being exploited in the wild: CVE-2023-32046, CVE-2023-32049, CVE-2023-35311 and CVE-2023-36874.

Microsoft is investigating reports of a series of remote code execution vulnerabilities impacting Windows and Office products. Microsoft is aware of targeted attacks that attempt to exploit these vulnerabilities by using specially-crafted Microsoft Office documents. An attacker could create a specially crafted Microsoft Office document that enables them to perform remote code execution in the context of the victim. However, an attacker would have to convince the victim to open the malicious file. Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This might include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs. Please see the Microsoft Threat Intelligence Blog https://aka.ms/Storm-0978  Entry for important information about steps you can take to protect your system from this vulnerability. This CVE will be updated with new inform...

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