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blacklist.go
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blacklist.go
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// (c) Copyright 2016 Hewlett Packard Enterprise Development LP
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rules
import (
"go/ast"
gas "github.com/GoASTScanner/gas/core"
)
type BlacklistImport struct {
gas.MetaData
Path string
}
func (r *BlacklistImport) Match(n ast.Node, c *gas.Context) (gi *gas.Issue, err error) {
if node, ok := n.(*ast.ImportSpec); ok {
if r.Path == node.Path.Value && node.Name.String() != "_" {
return gas.NewIssue(c, n, r.What, r.Severity, r.Confidence), nil
}
}
return nil, nil
}
func NewBlacklist_crypto_md5(conf map[string]interface{}) (gas.Rule, []ast.Node) {
return &BlacklistImport{
MetaData: gas.MetaData{
Severity: gas.High,
Confidence: gas.High,
What: "Use of weak cryptographic primitive",
},
Path: `"crypto/md5"`,
}, []ast.Node{(*ast.ImportSpec)(nil)}
}
func NewBlacklist_crypto_des(conf map[string]interface{}) (gas.Rule, []ast.Node) {
return &BlacklistImport{
MetaData: gas.MetaData{
Severity: gas.High,
Confidence: gas.High,
What: "Use of weak cryptographic primitive",
},
Path: `"crypto/des"`,
}, []ast.Node{(*ast.ImportSpec)(nil)}
}
func NewBlacklist_crypto_rc4(conf map[string]interface{}) (gas.Rule, []ast.Node) {
return &BlacklistImport{
MetaData: gas.MetaData{
Severity: gas.High,
Confidence: gas.High,
What: "Use of weak cryptographic primitive",
},
Path: `"crypto/rc4"`,
}, []ast.Node{(*ast.ImportSpec)(nil)}
}
func NewBlacklist_net_http_cgi(conf map[string]interface{}) (gas.Rule, []ast.Node) {
return &BlacklistImport{
MetaData: gas.MetaData{
Severity: gas.High,
Confidence: gas.High,
What: "Go versions < 1.6.3 are vulnerable to Httpoxy attack: (CVE-2016-5386)",
},
Path: `"net/http/cgi"`,
}, []ast.Node{(*ast.ImportSpec)(nil)}
}