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Fix the EV validity check (#447)
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The lint lint_ev_valid_time_too_long has several issues:
* It set the maximum validity as 825-days, rather than 27 months
  (which is 366 + 365 + 31 + 31 + 30 = 823 days) for certs issued
  before the 825-day change
* It set the source of the requirements to the BRs, rather than
  the EVGs

Co-authored-by: Zakir Durumeric <zakird@gmail.com>
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@sleevi @zakird
sleevi and zakird authored Jun 5, 2020
1 parent 37a03da commit c820d95
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Showing 5 changed files with 246 additions and 129 deletions.
4 changes: 3 additions & 1 deletion v2/integration/config.json
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Original file line number Diff line number Diff line change
Expand Up @@ -328,7 +328,9 @@
"e_ev_serial_number_missing": {
"ErrCount": 1
},
"e_ev_valid_time_too_long": {},
"e_ev_valid_time_too_long": {
"ErrCount": 151
},
"e_ext_aia_marked_critical": {},
"e_ext_authority_key_identifier_critical": {},
"e_ext_authority_key_identifier_missing": {
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15 changes: 10 additions & 5 deletions v2/lints/cabf_br/lint_ev_valid_time_too_long.go
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,16 @@ func (l *evValidTooLong) Initialize() error {
}

func (l *evValidTooLong) CheckApplies(c *x509.Certificate) bool {
return util.IsEV(c.PolicyIdentifiers) && util.IsSubscriberCert(c)
// CA/Browser Forum Ballot 193 changed the maximum validity period to be
// 825 days, which is more permissive than 27-month certificates, as that
// is 823 days.
return c.NotBefore.Before(util.SubCert825Days) &&
util.IsSubscriberCert(c) &&
util.IsEV(c.PolicyIdentifiers)
}

func (l *evValidTooLong) Execute(c *x509.Certificate) *lint.LintResult {
if c.NotBefore.AddDate(0, 0, 825).Before(c.NotAfter) {
if c.NotBefore.AddDate(0, 27, 0).Before(c.NotAfter) {
return &lint.LintResult{Status: lint.Error}
}
return &lint.LintResult{Status: lint.Pass}
Expand All @@ -40,9 +45,9 @@ func (l *evValidTooLong) Execute(c *x509.Certificate) *lint.LintResult {
func init() {
lint.RegisterLint(&lint.Lint{
Name: "e_ev_valid_time_too_long",
Description: "EV certificates must be 825 days in validity or less",
Citation: "BRs: 6.3.2",
Source: lint.CABFBaselineRequirements,
Description: "EV certificates must be 27 months in validity or less",
Citation: "EVGs 1.0: 8(a), EVGs 1.6.1: 9.4",
Source: lint.CABFEVGuidelines,
EffectiveDate: util.ZeroDate,
Lint: &evValidTooLong{},
})
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40 changes: 27 additions & 13 deletions v2/lints/cabf_br/lint_ev_valid_time_too_long_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,19 +22,33 @@ import (
)

func TestEvValidTooLong(t *testing.T) {
inputPath := "evValidTooLong.pem"
expected := lint.Error
out := test.TestLint("e_ev_valid_time_too_long", inputPath)
if out.Status != expected {
t.Errorf("%s: expected %s, got %s", inputPath, expected, out.Status)
testCases := []struct {
Name string
InputFilename string
ExpectedResult lint.LintStatus
}{
{
Name: "EV certificate valid for > 27 months",
InputFilename: "evValidTooLong.pem",
ExpectedResult: lint.Error,
},
{
Name: "EV certificate issued before Ballot 193 valid for 27 months",
InputFilename: "evValidNotTooLong.pem",
ExpectedResult: lint.Pass,
},
{
Name: "EV certificate issued after Ballot 193, valid for 825 days, which is >27 months",
InputFilename: "evValidNotTooLong825Days.pem",
ExpectedResult: lint.NA,
},
}
}

func TestEvValidNotTooLong(t *testing.T) {
inputPath := "evValidNotTooLong.pem"
expected := lint.Pass
out := test.TestLint("e_ev_valid_time_too_long", inputPath)
if out.Status != expected {
t.Errorf("%s: expected %s, got %s", inputPath, expected, out.Status)
for _, tc := range testCases {
t.Run(tc.Name, func(t *testing.T) {
result := test.TestLint("e_ev_valid_time_too_long", tc.InputFilename)
if result.Status != tc.ExpectedResult {
t.Errorf("expected result %v was %v", tc.ExpectedResult, result.Status)
}
})
}
}
198 changes: 88 additions & 110 deletions v2/testdata/evValidNotTooLong.pem
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Original file line number Diff line number Diff line change
Expand Up @@ -2,131 +2,109 @@ Certificate:
Data:
Version: 3 (0x2)
Serial Number:
06:9e:7f:ca:9f:c8:0a:7e:75:bd:26:df:07:38:c3:a8
Signature Algorithm: sha256WithRSAEncryption
Issuer:
commonName = PRINTABLESTRING:DigiCert SHA2 Extended Validation Server CA
organizationalUnitName = PRINTABLESTRING:www.digicert.com
organizationName = PRINTABLESTRING:DigiCert Inc
countryName = PRINTABLESTRING:US
5e:bf:9c:6a:6c:f2:30:55:18:6d:0a:35:0a:dd:6f:cd
Signature Algorithm: sha256WithRSAEncryption
Issuer: C = US, O = "thawte, Inc.", CN = thawte EV SSL CA - G3
Validity
Not Before: Apr 30 00:00:00 2018 GMT
Not After : Aug 2 00:00:00 2020 GMT
Subject:
commonName = PRINTABLESTRING:www.pillpack.com
organizationName = PRINTABLESTRING:PillPack, Inc
localityName = PRINTABLESTRING:Manchester
stateOrProvinceName = PRINTABLESTRING:New Hampshire
countryName = PRINTABLESTRING:US
serialNumber = PRINTABLESTRING:5282593
jurisdictionStateOrProvinceName = PRINTABLESTRING:Delaware
jurisdictionCountryName = PRINTABLESTRING:US
businessCategory = UTF8STRING:Private Organization
Not Before: Aug 1 00:00:00 2017 GMT
Not After : Oct 17 23:59:59 2019 GMT
Subject: jurisdictionC = GB, O = TELEFONICA UK LIMITED, C = GB, ST = Berkshire, L = Slough, businessCategory = Private Organization, serialNumber = 01743099, OU = Operations, CN = bt-api.o2wifi.co.uk
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
RSA Public-Key: (2048 bit)
Modulus:
00:cc:d8:aa:7d:94:c1:0a:33:05:03:04:7b:06:18:
55:df:02:98:e0:33:26:80:aa:3e:43:0d:16:22:17:
de:c1:93:33:11:96:50:73:d7:3c:6a:a5:32:73:e9:
2a:bd:5a:da:ce:c5:21:45:75:d0:1a:15:7e:7f:38:
82:27:ee:53:6f:d2:d3:b6:3f:9d:ad:5f:e5:7e:43:
63:48:5e:c7:4a:d7:8f:ca:42:1e:c1:aa:ef:5b:e1:
33:44:46:8c:75:76:1b:84:96:bc:94:51:92:cc:2c:
5f:b4:75:a0:03:62:74:d4:c1:6d:ef:41:d0:89:3d:
76:66:be:5e:f8:a0:ca:c3:c8:ef:92:be:ca:ab:84:
81:e6:00:a8:a1:1e:ba:40:2d:43:44:0f:ca:60:b1:
b5:72:94:70:72:a6:9c:83:c4:5b:8e:1a:3e:d2:dd:
75:53:5e:37:4d:29:83:e4:70:53:40:66:e5:1b:32:
c5:6c:c6:ac:d7:a5:73:d1:4c:0a:49:83:46:ff:ba:
f0:c6:c5:98:fb:bf:a4:53:a3:16:81:cc:ea:c4:58:
70:32:96:6d:31:45:ae:ab:28:58:89:e4:35:e2:78:
76:9f:8b:a5:d5:88:74:ec:18:95:db:36:5d:cd:30:
c2:07:b7:04:ff:1c:18:9a:45:ea:d5:8b:6a:12:a4:
f3:61
00:c6:44:5e:3a:23:6d:68:4d:81:2c:8a:5a:a2:cf:
5f:8e:f9:a0:a9:1f:5d:fe:82:df:c7:0c:cc:34:b1:
45:5e:b3:b9:ea:0a:45:b5:41:e2:8f:07:4b:51:1a:
48:e9:9a:d7:4e:6b:2a:11:8f:b8:ec:3a:54:6b:e8:
b0:0a:4e:20:5f:ad:05:e5:85:52:cd:aa:00:00:34:
0b:e7:ca:c1:24:11:d0:73:e9:df:59:b7:97:aa:4c:
7b:94:32:ec:75:e8:6d:71:fb:e2:e7:16:2d:fb:1c:
45:cd:f6:c4:5c:cf:e1:6f:1d:a8:97:d2:db:09:04:
2b:41:4d:4b:3d:25:62:a4:b5:25:42:af:24:53:2c:
79:b3:fa:ac:ef:2d:e9:54:f6:4d:8a:df:56:54:de:
34:d7:d7:2c:f4:68:0b:b9:9a:cc:95:07:b6:e2:7e:
b4:1c:e6:ca:19:a8:db:84:bb:1d:81:da:9c:54:a8:
d5:49:a2:9a:c0:97:23:70:9b:06:76:e5:fc:15:81:
30:93:a8:6c:2a:9e:e7:6d:41:a3:13:38:00:3c:e8:
57:65:01:bb:6a:3e:c4:bb:b2:7c:69:b4:c2:08:c4:
1f:06:3b:11:02:74:58:17:e4:5f:ee:0b:ec:bc:e0:
5c:61:13:0d:f5:dc:7b:b5:65:31:7e:28:5a:53:f1:
5f:83
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Authority Key Identifier:
keyid:3D:D3:50:A5:D6:A0:AD:EE:F3:4A:60:0A:65:D3:21:D4:F8:F8:D6:0F

X509v3 Subject Key Identifier:
E9:DA:44:27:29:71:BB:2F:59:05:D3:87:2A:9C:95:F1:3A:46:A9:65
X509v3 Subject Alternative Name:
DNS:www.pillpack.com, DNS:my.pillpack.com, DNS:admin.pillpack.com, DNS:api.pillpack.com
X509v3 Subject Alternative Name:
DNS:bt-api.o2wifi.co.uk
X509v3 Basic Constraints:
CA:FALSE
X509v3 Key Usage: critical
Digital Signature, Key Encipherment
X509v3 Extended Key Usage:
TLS Web Server Authentication, TLS Web Client Authentication
X509v3 CRL Distribution Points:

Full Name:
URI:http://crl3.digicert.com/sha2-ev-server-g2.crl
X509v3 CRL Distribution Points:

Full Name:
URI:http://crl4.digicert.com/sha2-ev-server-g2.crl
URI:http://ti.symcb.com/ti.crl

X509v3 Certificate Policies:
Policy: 2.16.840.1.114412.2.1
CPS: https://www.digicert.com/CPS
X509v3 Certificate Policies:
Policy: 2.16.840.1.113733.1.7.48.1
CPS: https://www.thawte.com/cps
User Notice:
Explicit Text: https://www.thawte.com/repository
Policy: 2.23.140.1.1

Authority Information Access:
OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/DigiCertSHA2ExtendedValidationServerCA.crt
X509v3 Extended Key Usage:
TLS Web Server Authentication, TLS Web Client Authentication
X509v3 Authority Key Identifier:
keyid:F0:70:51:DA:D3:2A:91:4F:52:77:D7:86:77:74:0F:CE:71:1A:6C:22

Authority Information Access:
OCSP - URI:http://ti.symcd.com
CA Issuers - URI:http://ti.symcb.com/ti.crt

X509v3 Basic Constraints: critical
CA:FALSE
CT Precertificate Poison: critical
..
NULL
Signature Algorithm: sha256WithRSAEncryption
01:6a:50:0f:94:5a:26:af:d8:fe:79:74:b0:d9:5a:bf:ee:05:
89:8c:16:38:4b:cf:86:39:cc:73:44:b4:6b:72:95:fc:ba:55:
47:65:74:08:7d:17:eb:d8:7e:94:2d:db:3b:90:8c:2b:15:c0:
d1:49:a5:94:a9:6c:a4:99:2a:bf:43:6f:b9:43:8b:7b:6b:b8:
19:8b:8c:b7:f6:0a:6e:c2:15:8b:c8:50:2b:62:71:bf:1c:dd:
26:37:aa:7e:2e:3e:fa:4d:ae:a7:a6:c4:0b:00:75:c7:61:e9:
ad:a4:2b:00:36:33:82:87:62:6d:e1:b6:8f:7a:ce:c0:a2:d8:
d3:ae:7a:34:2f:54:c6:e1:7b:4a:64:09:04:50:44:12:84:c7:
5b:7f:00:44:28:c0:1e:a4:b1:1f:bf:cf:8c:d3:88:84:91:73:
a6:10:af:6e:01:43:20:33:68:43:8e:b3:01:0d:87:ea:63:e2:
dc:ac:8f:86:bc:a2:b2:74:65:79:43:35:58:60:bf:00:bf:cf:
b3:d1:44:6f:7d:93:ae:7f:e2:eb:80:f6:90:21:33:c0:07:1c:
08:ee:69:54:25:68:e4:71:0a:15:f0:02:af:ae:40:5a:f0:61:
54:4c:d6:0a:dd:83:5f:36:e0:b8:3c:4b:27:99:71:e3:c2:ca:
c5:86:4e:2f

91:dc:d8:53:7c:d0:40:83:11:cc:be:6b:b9:76:da:56:85:0e:
b9:ee:9f:16:17:d6:85:3d:e5:25:5d:91:37:af:e3:57:9d:c1:
4b:01:88:6d:fb:78:7d:e0:d8:02:2e:ae:1f:1e:28:23:f0:63:
92:7b:e6:c4:ea:7d:6a:5e:d6:bc:61:5a:b6:e1:b2:2c:3d:dd:
54:f5:db:2c:8a:62:95:d9:de:19:94:2f:06:6e:cb:3f:3c:b6:
0f:d0:a2:8b:8c:97:68:23:03:43:2f:a0:44:22:1f:e4:d7:92:
d3:93:d0:1c:1e:a0:01:f8:a1:32:4d:e3:88:03:c0:52:59:86:
54:10:c9:85:32:8e:4d:ae:02:c3:71:c3:1c:e6:3c:0e:bd:7d:
2e:d2:7a:0e:c3:a0:87:30:ff:c1:c0:a7:54:23:4f:8b:5f:b0:
6c:36:07:f3:2a:3e:ca:8f:6c:61:34:e5:fa:ae:0c:44:5d:a1:
0f:f2:40:28:58:1f:6f:d9:f0:36:47:d7:d8:7f:04:c6:51:c0:
25:76:0c:2b:33:f8:2f:51:88:53:b3:d6:72:64:dd:db:29:54:
4e:1c:5c:84:88:0b:d6:0b:27:ee:5f:1b:81:17:d1:bf:18:c2:
5c:61:30:ea:7b:b0:25:cc:b0:9a:c3:b3:47:94:09:e4:4c:0f:
0e:b3:9c:b4
-----BEGIN CERTIFICATE-----
MIIGCTCCBPGgAwIBAgIQBp5/yp/ICn51vSbfBzjDqDANBgkqhkiG9w0BAQsFADB1
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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-----END CERTIFICATE-----
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