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Fixes two related security vulnerabilities (CVE-2020-15078) which
under very specific circumstances allow tricking a server using delayed
authentication (plugin or management) into returning a PUSH_REPLY before
the AUTH_FAILED message, which can possibly be used to gather
information about a VPN setup. In combination with "--auth-gen-token" or
a user-specific token auth solution it can be possible to get access to
a VPN with an otherwise-invalid account.
OpenVPN 2.5.2 also includes other bug fixes and improvements.
Add CI build test script.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
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This commit adds a number of fixes to the OpenVPN up/down hotplug command
wrapper which currently fails to actually invoke user defined up and down
commands for uci configurations not using external native configurations.
- Use the `--setenv` to pass the user configured `up` and `down` commands
as `user_up` and `user_down` environment variables respectively
- Instead of attempting to scrape the `up` and `down` settings from the
(possibly generated) native OpenVPN configuration in
`/etc/hotplug.d/openvpn/01-user`, read them from the respective
environment variables instead
- Fix parsing of native configuration values in `get_openvpn_option()`;
first try to parse a given setting as single quoted value, then as
double quoted and finally as non-quoted, potentially white-space
escaped one. This ensures that `up '/bin/foo'` is interpreted as
`/bin/foo` and not `'/bin/foo'`
Ref: https://forum.openwrt.org/t/openvpn-up-down-configuration-ignored/91126
Supersedes: #15121, #15284
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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See https://www.mankier.com/8/openvpn#--server-poll-timeout
Signed-off-by: Alexander Egorenkov <egorenar-dev@posteo.net>
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Set myself as maintainer.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
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Some VPN providers require username and password for client to connect.
This commit adds an option to specify username, password and
cert_password directly in uci config which then gets expanded during
start of openpvn client.
Signed-off-by: Michal Hrusecky <michal.hrusecky@turris.com>
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New features:
* Per client tls-crypt keys
* ChaCha20-Poly1305 can be used to encrypt the data channel
* Routes are added/removed via Netlink instead of ifconfig/route
(unless iproute2 support is enabled).
* VLAN support when using a TAP device
Significant changes:
* Server support can no longer be disabled.
* Crypto support can no longer be disabled, remove nossl variant.
* Blowfish (BF-CBC) is no longer implicitly the default cipher.
OpenVPN peers prior to 2.4, or peers with data cipher negotiation
disabled, will not be able to connect to a 2.5 peer unless
option data_fallback_ciphers is set on the 2.5 peer and it contains a
cipher supported by the client.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
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Signed-off-by: Rosen Penev <rosenp@gmail.com>
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