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https://github.com/securego/gosec.git
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bf103da519
Update the AddRule interface to allow rules to register interest in multiple ast.Nodes. Adds more flexibility to how rules can work, and was needed to fix the hard coded credentials test specifically.
52 lines
1.6 KiB
Go
52 lines
1.6 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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"regexp"
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gas "github.com/GoASTScanner/gas/core"
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)
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// Looks for net.Listen("0.0.0.0") or net.Listen(":8080")
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type BindsToAllNetworkInterfaces struct {
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gas.MetaData
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call *regexp.Regexp
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pattern *regexp.Regexp
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}
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func (r *BindsToAllNetworkInterfaces) Match(n ast.Node, c *gas.Context) (gi *gas.Issue, err error) {
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if node := gas.MatchCall(n, r.call); node != nil {
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if arg, err := gas.GetString(node.Args[1]); err == nil {
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if r.pattern.MatchString(arg) {
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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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}
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return
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}
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func NewBindsToAllNetworkInterfaces(conf map[string]interface{}) (gas.Rule, []ast.Node) {
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return &BindsToAllNetworkInterfaces{
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call: regexp.MustCompile(`^net\.Listen$`),
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pattern: regexp.MustCompile(`^(0.0.0.0|:).*$`),
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MetaData: gas.MetaData{
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Severity: gas.Medium,
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Confidence: gas.High,
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What: "Binds to all network interfaces",
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},
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}, []ast.Node{(*ast.CallExpr)(nil)}
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}
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