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security_test.go
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security_test.go
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// Copyright 2018 Saferwall. All rights reserved.
// Use of this source code is governed by Apache v2 license
// license that can be found in the LICENSE file.
package pe
import (
"crypto/x509"
"fmt"
"path/filepath"
"reflect"
"runtime"
"testing"
"time"
)
type TestSecurityEntry struct {
Header WinCertificate
Certificates []Certificate
err error
}
func TestParseSecurityDirectory(t *testing.T) {
tests := []struct {
in string
out TestSecurityEntry
}{
{
getAbsoluteFilePath("test/putty.exe"),
TestSecurityEntry{
Header: WinCertificate{
Length: 0x3D90,
Revision: 0x200,
CertificateType: 0x2,
},
Certificates: []Certificate{
{
Info: CertInfo{
Issuer: "GB, Greater Manchester, Salford, COMODO CA Limited, COMODO RSA Code Signing CA",
Subject: "GB, Cambridgeshire, Cambridge, Simon Tatham, Simon Tatham",
NotBefore: time.Date(2018, time.November, 13, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2021, time.November, 8, 23, 59, 59, 0, time.UTC),
SerialNumber: "7c1118cbbadc95da3752c46e47a27438",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA1WithRSA,
},
Verified: true,
SignatureValid: true,
},
{
Info: CertInfo{
Issuer: "GB, Greater Manchester, Salford, COMODO CA Limited, COMODO RSA Code Signing CA",
Subject: "GB, Cambridgeshire, Cambridge, Simon Tatham, Simon Tatham",
NotBefore: time.Date(2018, time.November, 13, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2021, time.November, 8, 23, 59, 59, 0, time.UTC),
SerialNumber: "7c1118cbbadc95da3752c46e47a27438",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA256WithRSA,
},
Verified: true,
SignatureValid: true,
},
},
err: nil,
},
},
{
getAbsoluteFilePath("test/putty_modified.exe"),
TestSecurityEntry{
Header: WinCertificate{
Length: 0x3D90,
Revision: 0x200,
CertificateType: 0x2,
},
Certificates: []Certificate{
{
Info: CertInfo{
Issuer: "GB, Greater Manchester, Salford, COMODO CA Limited, COMODO RSA Code Signing CA",
Subject: "GB, Cambridgeshire, Cambridge, Simon Tatham, Simon Tatham",
NotBefore: time.Date(2018, time.November, 13, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2021, time.November, 8, 23, 59, 59, 0, time.UTC),
SerialNumber: "7c1118cbbadc95da3752c46e47a27438",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA1WithRSA,
},
Verified: true,
SignatureValid: false,
},
{
Info: CertInfo{
Issuer: "GB, Greater Manchester, Salford, COMODO CA Limited, COMODO RSA Code Signing CA",
Subject: "GB, Cambridgeshire, Cambridge, Simon Tatham, Simon Tatham",
NotBefore: time.Date(2018, time.November, 13, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2021, time.November, 8, 23, 59, 59, 0, time.UTC),
SerialNumber: "7c1118cbbadc95da3752c46e47a27438",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA256WithRSA,
},
Verified: true,
SignatureValid: false,
},
},
err: nil,
},
},
{
getAbsoluteFilePath("test/579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648"),
TestSecurityEntry{
Header: WinCertificate{
Length: 0x3488,
Revision: 0x200,
CertificateType: 0x2,
},
Certificates: []Certificate{
{
Info: CertInfo{
Issuer: "US, VeriSign, Inc., VeriSign Class 3 Code Signing 2010 CA",
Subject: "US, California, Mountain View, Symantec Corporation, Symantec Corporation",
NotBefore: time.Date(2016, time.December, 16, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2017, time.December, 17, 23, 59, 59, 0, time.UTC),
SerialNumber: "0ebfea68d677b3e26cab41c33f3e69de",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA1WithRSA,
},
Verified: false,
SignatureValid: false,
},
{
Info: CertInfo{
Issuer: "US, Symantec Corporation, Symantec Class 3 SHA256 Code Signing CA - G2",
Subject: "US, California, Mountain View, Symantec Corporation, Symantec Corporation",
NotBefore: time.Date(2017, time.March, 15, 00, 00, 0, 0, time.UTC),
NotAfter: time.Date(2018, time.April, 13, 23, 59, 59, 0, time.UTC),
SerialNumber: "2e6be6bd11a8676e6c57909e9b0d5f57",
PublicKeyAlgorithm: x509.RSA,
SignatureAlgorithm: x509.SHA256WithRSA,
},
Verified: false,
SignatureValid: false,
},
},
err: nil,
},
},
{
getAbsoluteFilePath("test/00121dae38f26a33da2990987db58738c5a5966930126a42f606a3b40e014624"),
TestSecurityEntry{
err: ErrSecurityDataDirInvalid,
},
},
}
for _, tt := range tests {
t.Run(filepath.Base(tt.in), func(t *testing.T) {
ops := Options{Fast: true}
file, err := New(tt.in, &ops)
if err != nil {
t.Fatalf("New(%s) failed, reason: %v", tt.in, err)
}
err = file.Parse()
if err != nil {
t.Fatalf("Parse(%s) failed, reason: %v", tt.in, err)
}
var va, size uint32
if file.Is64 {
oh64 := file.NtHeader.OptionalHeader.(ImageOptionalHeader64)
dirEntry := oh64.DataDirectory[ImageDirectoryEntryCertificate]
va = dirEntry.VirtualAddress
size = dirEntry.Size
} else {
oh32 := file.NtHeader.OptionalHeader.(ImageOptionalHeader32)
dirEntry := oh32.DataDirectory[ImageDirectoryEntryCertificate]
va = dirEntry.VirtualAddress
size = dirEntry.Size
}
err = file.parseSecurityDirectory(va, size)
if err != tt.out.err {
t.Fatalf("parseSecurityDirectory(%s) failed, reason: %v", tt.in, err)
}
got := file.Certificates
if tt.out.err == nil {
if !reflect.DeepEqual(got.Header, tt.out.Header) {
t.Fatalf("certificate header assertion failed, got %v, want %v", got.Header, tt.out.Header)
}
}
if len(got.Certificates) != len(tt.out.Certificates) {
t.Fatalf("certificate count assertion failed, got %d, want %d", len(got.Certificates), len(tt.out.Certificates))
}
for i, cert := range got.Certificates {
expected := tt.out.Certificates[i]
if !reflect.DeepEqual(cert.Info, expected.Info) {
t.Fatalf("certificate info %d assertion failed, got %v, want %v", i, cert.Info, expected.Info)
}
if expected.SignatureValid != cert.SignatureValid {
t.Fatalf("signature verification %d failed, cert %v, want %v", i, cert.SignatureValid, expected.SignatureValid)
}
if runtime.GOOS == "linux" {
if expected.Verified != cert.Verified {
t.Fatalf("certificate verification %d failed, cert %v, want %v", i, cert.Verified, expected.Verified)
}
}
}
})
}
}
func TestAuthentihash(t *testing.T) {
tests := []struct {
in string
out string
}{
{getAbsoluteFilePath("test/putty.exe"),
"8be7d65593b0fff2e8b29004640261b8a0d4fcc651a14cd0b8b702b7928f8ee0"},
{getAbsoluteFilePath("test/mscorlib.dll"),
"a52bd7784efbf206dbda2db058f3928deaf15f6fedf2773affae56023e2f0edb"},
{getAbsoluteFilePath("test/liblzo2-2.dll"),
"ae603480b92c7ea3feca164010d2594f9a5282f8b732ecaa0aca29f3225835f6"},
{getAbsoluteFilePath("test/kernel32.dll"),
"595e4eb556587a1363ff297df9f354a377963ecac0bed19230992b9601426aae"},
{getAbsoluteFilePath("test/mfc40u.dll"),
"5c8acdf9b2c7854c6b8e22e973d2fbae9c68fc22513d24c68c8e8010b1663e67"},
{getAbsoluteFilePath("test/000057fd78f66e64e15f5070364c824a8923b6216bd8bcf6368857fb9674c483"),
""},
}
for _, tt := range tests {
t.Run(tt.in, func(t *testing.T) {
file, err := New(tt.in, &Options{})
if err != nil {
t.Fatalf("New(%s) failed, reason: %v", tt.in, err)
}
err = file.Parse()
if err != nil {
t.Fatalf("Parse(%s) failed, reason: %v", tt.in, err)
}
hash := file.Authentihash()
got := fmt.Sprintf("%x", hash)
if string(got) != tt.out {
t.Errorf("Authentihash(%s) got %v, want %v", tt.in, got, tt.out)
}
})
}
}