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Improve VPN ciphers

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- Improve security by removing support for modp1024 (DH group 2),
  which is less secure and no longer enabled in Libreswan by default.
- The native VPN client on Android devices uses modp1024 for the
  IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes. After this change,
  Android users should instead connect using IKEv2 mode (recommended).
This commit is contained in:
hwdsl2 2022-09-29 22:52:40 -05:00
parent 8ae26b832f
commit 025387df91
8 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
extras/vpnupgrade_alpine.sh
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@ -209,7 +209,7 @@ update_ikev2_script() {
update_config() {
bigecho "Updating VPN configuration..."
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1"
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
if uname -m | grep -qi '^arm'; then
if ! modprobe -q sha512; then

2
extras/vpnupgrade_amzn.sh
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@ -203,7 +203,7 @@ update_ikev2_script() {
update_config() {
bigecho "Updating VPN configuration..."
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1"
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
dns_state=0
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)

2
extras/vpnupgrade_centos.sh
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@ -255,7 +255,7 @@ update_ikev2_script() {
update_config() {
bigecho "Updating VPN configuration..."
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1"
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
dns_state=0
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)

2
extras/vpnupgrade_ubuntu.sh
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@ -239,7 +239,7 @@ update_ikev2_script() {
update_config() {
bigecho "Updating VPN configuration..."
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1"
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
if uname -m | grep -qi '^arm'; then
if ! modprobe -q sha512; then

2
vpnsetup_alpine.sh
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@ -337,7 +337,7 @@ conn shared
dpdtimeout=300
dpdaction=clear
ikev2=never
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1
phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
ikelifetime=24h
salifetime=24h

2
vpnsetup_amzn.sh
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@ -353,7 +353,7 @@ conn shared
dpdtimeout=300
dpdaction=clear
ikev2=never
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1
phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
ikelifetime=24h
salifetime=24h

2
vpnsetup_centos.sh
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@ -453,7 +453,7 @@ conn shared
dpdtimeout=300
dpdaction=clear
ikev2=never
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1
phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
ikelifetime=24h
salifetime=24h

2
vpnsetup_ubuntu.sh
View File

@ -398,7 +398,7 @@ conn shared
dpdtimeout=300
dpdaction=clear
ikev2=never
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1
phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
ikelifetime=24h
salifetime=24h