1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
package rfc
/*
* ZLint Copyright 2024 Regents of the University of Michigan
*
* 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.
*/
import (
"strings"
"github.com/zmap/zcrypto/x509"
"github.com/zmap/zlint/v3/lint"
"github.com/zmap/zlint/v3/util"
)
type aiaNoHTTPorLDAP struct{}
/************************************************
RFC 5280: 4.2.2.1
An authorityInfoAccess extension may include multiple instances of
the id-ad-caIssuers accessMethod. The different instances may
specify different methods for accessing the same information or may
point to different information. When the id-ad-caIssuers
accessMethod is used, at least one instance SHOULD specify an
accessLocation that is an HTTP [RFC2616] or LDAP [RFC4516] URI.
************************************************/
func init() {
lint.RegisterCertificateLint(&lint.CertificateLint{
LintMetadata: lint.LintMetadata{
Name: "w_ext_aia_access_location_missing",
Description: "When the id-ad-caIssuers accessMethod is used, at least one instance SHOULD specify an accessLocation that is an HTTP or LDAP URI",
Citation: "RFC 5280: 4.2.2.1",
Source: lint.RFC5280,
EffectiveDate: util.RFC5280Date,
},
Lint: NewAiaNoHTTPorLDAP,
})
}
func NewAiaNoHTTPorLDAP() lint.LintInterface {
return &aiaNoHTTPorLDAP{}
}
func (l *aiaNoHTTPorLDAP) CheckApplies(c *x509.Certificate) bool {
return util.IsExtInCert(c, util.AiaOID) && c.IssuingCertificateURL != nil
}
func (l *aiaNoHTTPorLDAP) Execute(c *x509.Certificate) *lint.LintResult {
for _, caIssuer := range c.IssuingCertificateURL {
if caIssuer = strings.ToLower(caIssuer); strings.HasPrefix(caIssuer, "http://") || strings.HasPrefix(caIssuer, "ldap://") {
return &lint.LintResult{Status: lint.Pass}
}
}
return &lint.LintResult{Status: lint.Warn}
}
|
