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20f2a98ce8
Blacklisted imports should not report failures when a module is imported for side-effects only using the blank identifier. Closes #59
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// (c) Copyright 2016 Hewlett Packard Enterprise Development LP
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rules
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import (
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"go/ast"
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gas "github.com/GoASTScanner/gas/core"
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)
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type BlacklistImport struct {
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gas.MetaData
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Path string
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}
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func (r *BlacklistImport) Match(n ast.Node, c *gas.Context) (gi *gas.Issue, err error) {
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if node, ok := n.(*ast.ImportSpec); ok {
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if r.Path == node.Path.Value && node.Name.String() != "_" {
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return gas.NewIssue(c, n, r.What, r.Severity, r.Confidence), nil
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}
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}
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return nil, nil
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}
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func NewBlacklist_crypto_md5(conf map[string]interface{}) (r gas.Rule, n ast.Node) {
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r = &BlacklistImport{
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MetaData: gas.MetaData{
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Severity: gas.High,
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Confidence: gas.High,
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What: "Use of weak cryptographic primitive",
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},
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Path: `"crypto/md5"`,
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}
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n = (*ast.ImportSpec)(nil)
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return
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}
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func NewBlacklist_crypto_des(conf map[string]interface{}) (r gas.Rule, n ast.Node) {
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r = &BlacklistImport{
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MetaData: gas.MetaData{
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Severity: gas.High,
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Confidence: gas.High,
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What: "Use of weak cryptographic primitive",
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},
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Path: `"crypto/des"`,
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}
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n = (*ast.ImportSpec)(nil)
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return
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}
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func NewBlacklist_crypto_rc4(conf map[string]interface{}) (r gas.Rule, n ast.Node) {
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r = &BlacklistImport{
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MetaData: gas.MetaData{
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Severity: gas.High,
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Confidence: gas.High,
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What: "Use of weak cryptographic primitive",
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},
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Path: `"crypto/rc4"`,
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}
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n = (*ast.ImportSpec)(nil)
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return
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}
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func NewBlacklist_net_http_cgi(conf map[string]interface{}) (r gas.Rule, n ast.Node) {
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r = &BlacklistImport{
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MetaData: gas.MetaData{
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Severity: gas.High,
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Confidence: gas.High,
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What: "Go code running under CGI is vulnerable to Httpoxy attack. (CVE-2016-5386)",
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},
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Path: `"net/http/cgi"`,
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}
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n = (*ast.ImportSpec)(nil)
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return
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}
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