Since OpenSSH 7.0 and greater similarly disable the ssh-dss (DSA) public
key algorithm, and recommend against its use.
http://www.openssh.com/legacy.html
## ⚠️ BREAKING ⚠️
This patch will remove DSA host key form OpenSSH daemon configuration
file.
Signed-off-by: baronbunny <its@baronbunny.cn>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Unforunately #16009 makes these settings mandatory. This PR uses the same technique
as used for the certificates to make these settings non-mandatory.
Fix#16044
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
* Make sshd_config more flexible regarding
MaxStartups and MaxSessions.
See https://man.openbsd.org/sshd_config
for more information.
* make property prefix equals
other existing Gitea SSH properties.
Co-authored-by: dlouzado <dlouzado@senado.leg.br>
A common bug report is the otherwise harmless sshd logging:
```
Could not load host certificate "/data/ssh/ssh_host_ed25519_cert": No such file or directory
```
This PR simply checks if these files exist before creation of sshd_config and if
they do not exist, doesn't add a reference to them.
Fix#14110 amongst others.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lauris BH <lauris@nix.lv>
Afaik, adding these lines does nothing unless the file(s) are present. Having them in let's admins supply certs instead of relying on TOFU.
Co-authored-by: zeripath <art27@cantab.net>
* Add ssh certificate support
* Add ssh certificate support to builtin ssh
* Write trusted-user-ca-keys.pem based on configuration
* Update app.example.ini
* Update templates/user/settings/keys_principal.tmpl
Co-authored-by: silverwind <me@silverwind.io>
* Remove unused locale string
* Update options/locale/locale_en-US.ini
Co-authored-by: silverwind <me@silverwind.io>
* Update options/locale/locale_en-US.ini
Co-authored-by: silverwind <me@silverwind.io>
* Update models/ssh_key.go
Co-authored-by: silverwind <me@silverwind.io>
* Add missing creation of SSH.Rootpath
* Update cheatsheet, example and locale strings
* Update models/ssh_key.go
Co-authored-by: zeripath <art27@cantab.net>
* Update models/ssh_key.go
Co-authored-by: zeripath <art27@cantab.net>
* Update models/ssh_key.go
Co-authored-by: zeripath <art27@cantab.net>
* Update models/ssh_key.go
Co-authored-by: zeripath <art27@cantab.net>
* Update models/ssh_key.go
* Optimizations based on feedback
* Validate CA keys for external sshd
* Add filename option and change default filename
Add a SSH_TRUSTED_USER_CA_KEYS_FILENAME option which default is
RUN_USER/.ssh/gitea-trusted-user-ca-keys.pem
Do not write a file when SSH_TRUSTED_USER_CA_KEYS is empty.
Add some more documentation.
* Remove unneeded principalkey functions
* Add blank line
* Apply suggestions from code review
Co-authored-by: zeripath <art27@cantab.net>
* Add SSH_AUTHORIZED_PRINCIPALS_ALLOW option
This adds a SSH_AUTHORIZED_PRINCIPALS_ALLOW which is default
email,username this means that users only can add the principals
that match their email or username.
To allow anything the admin need to set the option anything.
This allows for a safe default in gitea which protects against malicious
users using other user's prinicipals. (before that user could set it).
This commit also has some small other fixes from the last code review.
* Rewrite principal keys file on user deletion
* Use correct rewrite method
* Set correct AuthorizedPrincipalsBackup default setting
* Rewrite principalsfile when adding principals
* Add update authorized_principals option to admin dashboard
* Handle non-primary emails
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Add the command actually to the dashboard template
* Update models/ssh_key.go
Co-authored-by: silverwind <me@silverwind.io>
* By default do not show principal options unless there are CA keys set or they are explicitly set
Signed-off-by: Andrew Thornton <art27@cantab.net>
* allow settings when enabled
* Fix typos in TrustedUserCAKeys path
* Allow every CASignatureAlgorithms algorithm
As this depends on the content of TrustedUserCAKeys we should allow all
signature algorithms as admins can choose the specific algorithm on their
signing CA
* Update models/ssh_key.go
Co-authored-by: Lauris BH <lauris@nix.lv>
* Fix linting issue
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: techknowlogick <matti@mdranta.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
* Disable DSA ssh keys by default
OpenSSH has disabled DSA keys since version 7.0
As the docker runs openssh > v7.0 we should just disable
DSA keys by default.
Refers to #11417
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Just disable DSA keys by default
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Appears we need to set the minimum key sizes too
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Appears we need to set the minimum key sizes too
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Remove DSA type
* Fix Tests
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lauris BH <lauris@nix.lv>
docker/root/usr/bin/entrypoint already allows for the specification
of USER, USER_UID, USER_GID. But since AllowedUsers is hardcoded in
sshd_config, one cannot log in as a user different ftom git.
This change substitutes ${USER} for git in the sshd_config template.
Signed-off-by: Jeronimo Pellegrini <j_p@aleph0.info>
* - rearrange the templates to make it more logical because now ssh_config is a template
- implemented the updating of the port to the same as the port sent to the gitea config
* change the filename back
