ASP.NET and .NET Elevation of Privilege Vulnerability
CVE-2020-1476

5.5MEDIUM

Key Information:

Vendor
Microsoft
Status
Microsoft .net Framework 4.8
Microsoft .net Framework 3.5 And 4.8
Microsoft .net Framework 2.0 Service Pack 2
Microsoft .net Framework 4.5.2
Vendor
CVE Published:
17 August 2020

Summary

An elevation of privilege vulnerability exists when ASP.NET or .NET web applications running on IIS improperly allow access to cached files. An attacker who successfully exploited this vulnerability could gain access to restricted files. To exploit this vulnerability, an attacker would need to send a specially crafted request to an affected server. The update addresses the vulnerability by changing how ASP.NET and .NET handle requests.

Affected Version(s)

Microsoft .NET Framework 2.0 Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 2.0.0

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 Windows 10 Version 1607 for x64-based Systems 3.0.0.0

Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 Windows 10 for 32-bit Systems 3.5.0

References

https://portal.msrc.microsoft.com/en-US/security-guidance...
x_refsource_MISC

EPSS Score

0% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.