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package rules
import (
"go/ast"
"github.com/securego/gosec/v2"
)
type sshHostKey struct {
gosec.MetaData
pkg string
calls []string
}
func (r *sshHostKey) ID() string {
return r.MetaData.ID
}
func (r *sshHostKey) Match(n ast.Node, c *gosec.Context) (gi *gosec.Issue, err error) {
if _, matches := gosec.MatchCallByPackage(n, c, r.pkg, r.calls...); matches {
return gosec.NewIssue(c, n, r.ID(), r.What, r.Severity, r.Confidence), nil
}
return nil, nil
}
// NewSSHHostKey rule detects the use of insecure ssh HostKeyCallback.
func NewSSHHostKey(id string, conf gosec.Config) (gosec.Rule, []ast.Node) {
return &sshHostKey{
pkg: "golang.org/x/crypto/ssh",
calls: []string{"InsecureIgnoreHostKey"},
MetaData: gosec.MetaData{
ID: id,
What: "Use of ssh InsecureIgnoreHostKey should be audited",
Severity: gosec.Medium,
Confidence: gosec.High,
},
}, []ast.Node{(*ast.CallExpr)(nil)}
}
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