vetkit.csharp.deserialization.binary-formatter
Data is deserialized with BinaryFormatter, SoapFormatter, NetDataContractSerializer, LosFormatter or ObjectStateFormatter. These formatters instantiate attacker-chosen types and lead to remote code execution on untrusted input; Microsoft states they cannot be made safe.
Last updated:
Suite: Security
csharp
Data is deserialized with BinaryFormatter, SoapFormatter, NetDataContractSerializer, LosFormatter or ObjectStateFormatter. These formatters instantiate attacker-chosen types and lead to remote code execution on untrusted input; Microsoft states they cannot be made safe.
Category: SECURITY · Engine rule severity: ERROR
How to fix it
Switch to System.Text.Json, XmlSerializer or DataContractSerializer with a fixed set of known types. See Microsoft's BinaryFormatter migration guide.
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.