Vulnerabilidades en .NET Framework

La boletín de seguridad de Microsoft para Julio, menciona tres problemas de seguridad en el .NET Framework, dos de éstos permiten la ejecución remota de código y el tercero permite descargar los contenidos de cualquier aplicación Web.

  • .NET PE Loader Vulnerability: A remote code execution vulnerability exists in .NET Framework that could allow an attacker who successfully exploited this vulnerability to make changes to the system with the permissions of the logged-on user. If a user is logged in with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • .NET JIT Compiler Vulnerability: A remote code execution vulnerability exists in .NET Framework Just In Time Compiler that could allow an attacker who successfully exploited this vulnerability to make changes to the system with the permissions of the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • ASP.NET Null Byte Termination Vulnerability: An information disclosure vulnerability exists in .NET Framework that could allow an attacker who successfully exploited this vulnerability to bypass the security features of an ASP.NET Web site to download the contents of any Web page.