Microsoft .NET Framework Multiple Vulnerabilities
Last Update Date:
14 Nov 2012 17:20
Release Date:
14 Nov 2012
3974
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RISK: High Risk
TYPE: Operating Systems - Windows OS
- Reflection Bypass Vulnerability An elevation of privilege vulnerability exists in the way that .NET Framework validates the permissions of certain objects performing reflection. An attacker who successfully exploited this vulnerability could take complete control of an 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.
- Code Access Security Info Disclosure Vulnerability An information disclosure vulnerability exists in the Microsoft .NET Framework due to the improper sanitization of output when a function is called from partially trusted code. An attacker who successfully exploited this vulnerability could obtain confidential information contained on the target system.
- .NET Framework Insecure Library Loading Vulnerability A remote code execution vulnerability exists in the way that the Microsoft .NET Framework handles the loading of DLL files. An attacker who successfully exploited this vulnerability could take complete control of an 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.
- Web Proxy Auto-Discovery Vulnerability An information disclosure vulnerability exists in the Microsoft .NET Framework due to the improper sanitization of output when a function is called from partially trusted code. An attacker who successfully exploited this vulnerability could obtain confidential information contained on the target system.
- WPF Reflection Optimization Vulnerability An elevation of privilege vulnerability exists in the way that the .Net Framework validates permissions for objects involved with reflection. An attacker who successfully exploited this vulnerability could take complete control of an 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.
Impact
- Remote Code Execution
- Security Restriction Bypass
- Information Disclosure
System / Technologies affected
- Microsoft .NET Framework 1.x
- Microsoft .NET Framework 2.x
- Microsoft .NET Framework 3.x
- Microsoft .NET Framework 4.x
Solutions
Before installation of the software, please visit the software manufacturer web-site for more details.
- Download location for patches:
http://technet.microsoft.com/en-us/security/bulletin/MS12-074
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