Authentication Bypass Affecting system.net.security package, versions [,4.0.1) [4.3,4.3.1)
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
EPSS
0.11% (44th
percentile)
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Test your applications- Snyk ID SNYK-DOTNET-SYSTEMNETSECURITY-60072
- published 12 May 2017
- disclosed 12 May 2017
- credit Mikhail Shcherbakov
Introduced: 12 May 2017
CVE-2017-0256 Open this link in a new tabHow to fix?
Upgrade System.Net.Security to version 4.0.1, 4.3.1 or higher.
Overview
System.Net.Security provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure network communication between client and server endpoints.
Affected versions of this package are vulnerable to Authentication Bypass attacks. The ASP.NET Core fails to properly sanitize the Web Request Handler component, allowing an attacker to spoof web requests and bypass authentication.