vetkit.csharp.tls.legacy-protocol
SSL 3.0, TLS 1.0 or TLS 1.1 is explicitly enabled. These protocol versions are deprecated (RFC 8996) and vulnerable to downgrade and padding-oracle attacks.
Last updated:
Suite: Security
csharp
SSL 3.0, TLS 1.0 or TLS 1.1 is explicitly enabled. These protocol versions are deprecated (RFC 8996) and vulnerable to downgrade and padding-oracle attacks.
Category: SECURITY · Engine rule severity: WARNING
How to fix it
Leave the protocol choice to the OS (SslProtocols.None / SecurityProtocolType.SystemDefault) or allow only TLS 1.2 and 1.3.
References
Source: packages/engine/rules/sast/csharp.yml.
Generated from shipped rule definitions at build time. Matching is a review signal, not proof of exploitability. “generic” denotes text matching, not complete language or framework coverage. Runtime configuration and available tools affect whether a rule runs.