File openssh-9.6p1-crypto-policies-man.patch of Package openssh
Index: openssh-10.2p1/ssh_config.5 =================================================================== --- openssh-10.2p1.orig/ssh_config.5 +++ openssh-10.2p1/ssh_config.5 @@ -441,17 +441,14 @@ A single argument of causes no CNAMEs to be considered for canonicalization. This is the default behaviour. .It Cm CASignatureAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies which algorithms are allowed for signing of certificates by certificate authorities (CAs). -The default is: -.Bd -literal -offset indent -ssh-ed25519,ecdsa-sha2-nistp256, -ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed -.Pp If the specified list begins with a .Sq + character, then the specified algorithms will be appended to the default set @@ -590,20 +587,26 @@ If the option is set to (the default), the check will not be executed. .It Cm Ciphers +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the ciphers allowed and their order of preference. Multiple ciphers must be comma-separated. If the specified list begins with a .Sq + -character, then the specified ciphers will be appended to the default set -instead of replacing them. +character, then the specified ciphers will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified ciphers (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified ciphers will be placed at the head of the -default set. +built-in openssh default set. .Pp The supported ciphers are: .Bd -literal -offset indent @@ -619,13 +622,6 @@ aes256-gcm@openssh.com chacha20-poly1305@openssh.com .Ed .Pp -The default is: -.Bd -literal -offset indent -chacha20-poly1305@openssh.com, -aes128-gcm@openssh.com,aes256-gcm@openssh.com, -aes128-ctr,aes192-ctr,aes256-ctr -.Ed -.Pp The list of available ciphers may also be obtained using .Qq ssh -Q cipher . .It Cm ClearAllForwardings @@ -1027,6 +1023,12 @@ command line will be passed untouched to The default is .Dq no . .It Cm GSSAPIKexAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp The list of key exchange algorithms that are offered for GSSAPI key exchange. Possible values are .Bd -literal -offset 3n @@ -1039,10 +1041,8 @@ gss-nistp256-sha256-, gss-curve25519-sha256- .Ed .Pp -The default is -.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-, -gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- . This option only applies to connections using GSSAPI. +.Pp .It Cm HashKnownHosts Indicates that .Xr ssh 1 @@ -1061,36 +1061,26 @@ will not be converted automatically, but may be manually hashed using .Xr ssh-keygen 1 . .It Cm HostbasedAcceptedAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the signature algorithms that will be used for hostbased authentication as a comma-separated list of patterns. Alternately if the specified list begins with a .Sq + character, then the specified signature algorithms will be appended -to the default set instead of replacing them. +to the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified signature algorithms (including wildcards) -will be removed from the default set instead of replacing them. +will be removed from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified signature algorithms will be placed -at the head of the default set. -The default for this option is: -.Bd -literal -offset 3n -ssh-ed25519-cert-v01@openssh.com, -ecdsa-sha2-nistp256-cert-v01@openssh.com, -ecdsa-sha2-nistp384-cert-v01@openssh.com, -ecdsa-sha2-nistp521-cert-v01@openssh.com, -sk-ssh-ed25519-cert-v01@openssh.com, -sk-ecdsa-sha2-nistp256-cert-v01@openssh.com, -rsa-sha2-512-cert-v01@openssh.com, -rsa-sha2-256-cert-v01@openssh.com, -ssh-ed25519, -ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed +at the head of the built-in openssh default set. .Pp The .Fl Q @@ -1143,6 +1133,17 @@ to prefer their algorithms. .Pp The list of available signature algorithms may also be obtained using .Qq ssh -Q HostKeyAlgorithms . +.Pp +The proposed +.Cm HostKeyAlgorithms +during KEX are limited to the set of algorithms that is defined in +.Cm PubkeyAcceptedAlgorithms +and therefore they are indirectly affected by system-wide +.Xr crypto_policies 7 . +.Xr crypto_policies 7 can not handle the list of host key algorithms directly +as doing so would break the order given by the +.Pa known_hosts +file. .It Cm HostKeyAlias Specifies an alias that should be used instead of the real host name when looking up or saving the host key @@ -1363,6 +1364,12 @@ it may be zero or more of: and .Cm pam . .It Cm KexAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the permitted KEX (Key Exchange) algorithms that will be used and their preference order. The selected algorithm will be the first algorithm in this list that @@ -1371,28 +1378,16 @@ Multiple algorithms must be comma-separa .Pp If the specified list begins with a .Sq + -character, then the specified algorithms will be appended to the default set -instead of replacing them. +character, then the specified methods will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. -.Pp -The default is: -.Bd -literal -offset indent -mlkem768x25519-sha256, -sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com, -curve25519-sha256,curve25519-sha256@libssh.org, -ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, -diffie-hellman-group-exchange-sha256, -diffie-hellman-group16-sha512, -diffie-hellman-group18-sha512, -diffie-hellman-group14-sha256 -.Ed +built-in openssh default set. .Pp The list of supported key exchange algorithms may also be obtained using .Qq ssh -Q kex . @@ -1509,37 +1504,34 @@ function, and all code in the file. This option is intended for debugging and no overrides are enabled by default. .It Cm MACs +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the MAC (message authentication code) algorithms in order of preference. The MAC algorithm is used for data integrity protection. Multiple algorithms must be comma-separated. If the specified list begins with a .Sq + -character, then the specified algorithms will be appended to the default set -instead of replacing them. +character, then the specified algorithms will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. +built-in openssh default set. .Pp The algorithms that contain .Qq -etm calculate the MAC after encryption (encrypt-then-mac). These are considered safer and their use recommended. .Pp -The default is: -.Bd -literal -offset indent -umac-64-etm@openssh.com,umac-128-etm@openssh.com, -hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, -hmac-sha1-etm@openssh.com, -umac-64@openssh.com,umac-128@openssh.com, -hmac-sha2-256,hmac-sha2-512,hmac-sha1 -.Ed -.Pp The list of available MAC algorithms may also be obtained using .Qq ssh -Q mac . .It Cm NoHostAuthenticationForLocalhost @@ -1728,39 +1720,32 @@ instead of continuing to execute and pas The default is .Cm no . .It Cm PubkeyAcceptedAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the signature algorithms that will be used for public key authentication as a comma-separated list of patterns. If the specified list begins with a .Sq + -character, then the algorithms after it will be appended to the default -instead of replacing it. +character, then the algorithms after it will be appended to the built-in +openssh default instead of replacing it. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. -The default for this option is: -.Bd -literal -offset 3n -ssh-ed25519-cert-v01@openssh.com, -ecdsa-sha2-nistp256-cert-v01@openssh.com, -ecdsa-sha2-nistp384-cert-v01@openssh.com, -ecdsa-sha2-nistp521-cert-v01@openssh.com, -sk-ssh-ed25519-cert-v01@openssh.com, -sk-ecdsa-sha2-nistp256-cert-v01@openssh.com, -rsa-sha2-512-cert-v01@openssh.com, -rsa-sha2-256-cert-v01@openssh.com, -ssh-ed25519, -ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed +built-in openssh default set. .Pp The list of available signature algorithms may also be obtained using .Qq ssh -Q PubkeyAcceptedAlgorithms . +.Pp +This option affects also +.Cm HostKeyAlgorithms .It Cm PubkeyAuthentication Specifies whether to try public key authentication. The argument to this keyword must be @@ -2512,7 +2497,9 @@ This file provides the vendor defaults a configuration file does not exist. .El .Sh SEE ALSO -.Xr ssh 1 +.Xr ssh 1 , +.Xr crypto-policies 7 , +.Xr update-crypto-policies 8 .Sh AUTHORS .An -nosplit OpenSSH is a derivative of the original and free Index: openssh-10.2p1/sshd_config.5 =================================================================== --- openssh-10.2p1.orig/sshd_config.5 +++ openssh-10.2p1/sshd_config.5 @@ -381,17 +381,14 @@ If the argument is then no banner is displayed. By default, no banner is displayed. .It Cm CASignatureAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies which algorithms are allowed for signing of certificates by certificate authorities (CAs). -The default is: -.Bd -literal -offset indent -ssh-ed25519,ecdsa-sha2-nistp256, -ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed -.Pp If the specified list begins with a .Sq + character, then the specified algorithms will be appended to the default set @@ -535,20 +532,26 @@ The default is indicating not to .Xr chroot 2 . .It Cm Ciphers +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the ciphers allowed. Multiple ciphers must be comma-separated. If the specified list begins with a .Sq + -character, then the specified ciphers will be appended to the default set -instead of replacing them. +character, then the specified ciphers will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified ciphers (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified ciphers will be placed at the head of the -default set. +built-in openssh default set. .Pp The supported ciphers are: .Pp @@ -575,13 +578,6 @@ aes256-gcm@openssh.com chacha20-poly1305@openssh.com .El .Pp -The default is: -.Bd -literal -offset indent -chacha20-poly1305@openssh.com, -aes128-gcm@openssh.com,aes256-gcm@openssh.com, -aes128-ctr,aes192-ctr,aes256-ctr -.Ed -.Pp The list of available ciphers may also be obtained using .Qq ssh -Q cipher . .It Cm ClientAliveCountMax @@ -772,53 +768,45 @@ For this to work .Cm GSSAPIKeyExchange needs to be enabled in the server and also used by the client. .It Cm GSSAPIKexAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp The list of key exchange algorithms that are accepted by GSSAPI key exchange. Possible values are .Bd -literal -offset 3n -gss-gex-sha1-, -gss-group1-sha1-, -gss-group14-sha1-, -gss-group14-sha256-, -gss-group16-sha512-, -gss-nistp256-sha256-, +gss-gex-sha1- +gss-group1-sha1- +gss-group14-sha1- +gss-group14-sha256- +gss-group16-sha512- +gss-nistp256-sha256- gss-curve25519-sha256- .Ed -.Pp -The default is -.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-, -gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- . This option only applies to connections using GSSAPI. .It Cm HostbasedAcceptedAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the signature algorithms that will be accepted for hostbased authentication as a list of comma-separated patterns. Alternately if the specified list begins with a .Sq + character, then the specified signature algorithms will be appended to -the default set instead of replacing them. +the built-in openssh set instead of replacing them. If the specified list begins with a .Sq - character, then the specified signature algorithms (including wildcards) -will be removed from the default set instead of replacing them. +will be removed from the built-in openssh set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified signature algorithms will be placed at -the head of the default set. -The default for this option is: -.Bd -literal -offset 3n -ssh-ed25519-cert-v01@openssh.com, -ecdsa-sha2-nistp256-cert-v01@openssh.com, -ecdsa-sha2-nistp384-cert-v01@openssh.com, -ecdsa-sha2-nistp521-cert-v01@openssh.com, -sk-ssh-ed25519-cert-v01@openssh.com, -sk-ecdsa-sha2-nistp256-cert-v01@openssh.com, -rsa-sha2-512-cert-v01@openssh.com, -rsa-sha2-256-cert-v01@openssh.com, -ssh-ed25519, -ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed +the head of the built-in openssh default set. .Pp The list of available signature algorithms may also be obtained using .Qq ssh -Q HostbasedAcceptedAlgorithms . @@ -885,25 +873,15 @@ is specified, the location of the socket .Ev SSH_AUTH_SOCK environment variable. .It Cm HostKeyAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the host key signature algorithms that the server offers. The default for this option is: -.Bd -literal -offset 3n -ssh-ed25519-cert-v01@openssh.com, -ecdsa-sha2-nistp256-cert-v01@openssh.com, -ecdsa-sha2-nistp384-cert-v01@openssh.com, -ecdsa-sha2-nistp521-cert-v01@openssh.com, -sk-ssh-ed25519-cert-v01@openssh.com, -sk-ecdsa-sha2-nistp256-cert-v01@openssh.com, -rsa-sha2-512-cert-v01@openssh.com, -rsa-sha2-256-cert-v01@openssh.com, -ssh-ed25519, -ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed -.Pp The list of available signature algorithms may also be obtained using .Qq ssh -Q HostKeyAlgorithms . .It Cm IgnoreRhosts @@ -1043,6 +1021,12 @@ The default value can lead to overwriting previous tickets by subseqent connections to the same user account. .It Cm KexAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the permitted KEX (Key Exchange) algorithms that the server will offer to clients. The ordering of this list is not important, as the client specifies the @@ -1051,16 +1035,16 @@ Multiple algorithms must be comma-separa .Pp If the specified list begins with a .Sq + -character, then the specified algorithms will be appended to the default set -instead of replacing them. +character, then the specified methods will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. +built-in openssh default set. .Pp The supported algorithms are: .Pp @@ -1097,14 +1081,6 @@ sntrup761x25519-sha512 sntrup761x25519-sha512@openssh.com .El .Pp -The default is: -.Bd -literal -offset indent -mlkem768x25519-sha256, -sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com, -curve25519-sha256,curve25519-sha256@libssh.org, -ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521 -.Ed -.Pp The list of supported key exchange algorithms may also be obtained using .Qq ssh -Q KexAlgorithms . .It Cm ListenAddress @@ -1191,21 +1167,27 @@ function, and all code in the file. This option is intended for debugging and no overrides are enabled by default. .It Cm MACs +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the available MAC (message authentication code) algorithms. The MAC algorithm is used for data integrity protection. Multiple algorithms must be comma-separated. If the specified list begins with a .Sq + -character, then the specified algorithms will be appended to the default set -instead of replacing them. +character, then the specified algorithms will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. +built-in openssh default set. .Pp The algorithms that contain .Qq -etm @@ -1248,15 +1230,6 @@ umac-64-etm@openssh.com umac-128-etm@openssh.com .El .Pp -The default is: -.Bd -literal -offset indent -umac-64-etm@openssh.com,umac-128-etm@openssh.com, -hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, -hmac-sha1-etm@openssh.com, -umac-64@openssh.com,umac-128@openssh.com, -hmac-sha2-256,hmac-sha2-512,hmac-sha1 -.Ed -.Pp The list of available MAC algorithms may also be obtained using .Qq ssh -Q mac . .It Cm Match @@ -1742,36 +1715,26 @@ or equivalent.) The default is .Cm yes . .It Cm PubkeyAcceptedAlgorithms +The default is handled system-wide by +.Xr crypto-policies 7 . +Information about defaults, how to modify the defaults and how to customize +existing policies with sub-policies are present in manual page +.Xr update-crypto-policies 8 . +.Pp Specifies the signature algorithms that will be accepted for public key authentication as a list of comma-separated patterns. Alternately if the specified list begins with a .Sq + -character, then the specified algorithms will be appended to the default set -instead of replacing them. +character, then the specified algorithms will be appended to the built-in +openssh default set instead of replacing them. If the specified list begins with a .Sq - character, then the specified algorithms (including wildcards) will be removed -from the default set instead of replacing them. +from the built-in openssh default set instead of replacing them. If the specified list begins with a .Sq ^ character, then the specified algorithms will be placed at the head of the -default set. -The default for this option is: -.Bd -literal -offset 3n -ssh-ed25519-cert-v01@openssh.com, -ecdsa-sha2-nistp256-cert-v01@openssh.com, -ecdsa-sha2-nistp384-cert-v01@openssh.com, -ecdsa-sha2-nistp521-cert-v01@openssh.com, -sk-ssh-ed25519-cert-v01@openssh.com, -sk-ecdsa-sha2-nistp256-cert-v01@openssh.com, -rsa-sha2-512-cert-v01@openssh.com, -rsa-sha2-256-cert-v01@openssh.com, -ssh-ed25519, -ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -sk-ssh-ed25519@openssh.com, -sk-ecdsa-sha2-nistp256@openssh.com, -rsa-sha2-512,rsa-sha2-256 -.Ed +built-in openssh default set. .Pp The list of available signature algorithms may also be obtained using .Qq ssh -Q PubkeyAcceptedAlgorithms . @@ -2284,7 +2247,9 @@ This file should be writable by root onl .El .Sh SEE ALSO .Xr sftp-server 8 , -.Xr sshd 8 +.Xr sshd 8 , +.Xr crypto-policies 7 , +.Xr update-crypto-policies 8 .Sh AUTHORS .An -nosplit OpenSSH is a derivative of the original and free
