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Demande d'aide : Clé SSL invalide ?


free.rage
27/04/2015, 15h06
Bonjour,

Merci de ton aide.

En ce qui concerne les vHost, j'ai un fichier qui se nomme [nom du serveur] (qui n'a pas été modifié depuis le démarrage du serveur) :
Code:
cat /etc/apache2/sites-available/[nom du serveur] 


	DocumentRoot /var/www/
	ServerName [nom du serveur]

	SSLEngine on
	SSLCertificateFile /etc/apache2/ssl/[nom du serveur].crt
	SSLCertificateKeyFile /etc/apache2/ssl/[nom du serveur].key

	# /etc/apache2/conf.d/owncloud.conf

Il y a aussi deux fichiers : default et default-ssl

default-ssl :
Code:


	ServerAdmin webmaster@localhost

	DocumentRoot /var/www
	
		Options FollowSymLinks
		AllowOverride None
	
	
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
	

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	
		AllowOverride None
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined

	#   SSL Engine Switch:
	#   Enable/Disable SSL for this virtual host.
	SSLEngine on

	#   A self-signed (snakeoil) certificate can be created by installing
	#   the ssl-cert package. See
	#   /usr/share/doc/apache2.2-common/README.Debian.gz for more info.
	#   If both key and certificate are stored in the same file, only the
	#   SSLCertificateFile directive is needed.
	SSLCertificateFile    /etc/ssl/certs/ssl-cert-snakeoil.pem
	SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key

	#   Server Certificate Chain:
	#   Point SSLCertificateChainFile at a file containing the
	#   concatenation of PEM encoded CA certificates which form the
	#   certificate chain for the server certificate. Alternatively
	#   the referenced file can be the same as SSLCertificateFile
	#   when the CA certificates are directly appended to the server
	#   certificate for convinience.
	#SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt

	#   Certificate Authority (CA):
	#   Set the CA certificate verification path where to find CA
	#   certificates for client authentication or alternatively one
	#   huge file containing all of them (file must be PEM encoded)
	#   Note: Inside SSLCACertificatePath you need hash symlinks
	#         to point to the certificate files. Use the provided
	#         Makefile to update the hash symlinks after changes.
	#SSLCACertificatePath /etc/ssl/certs/
	#SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt

	#   Certificate Revocation Lists (CRL):
	#   Set the CA revocation path where to find CA CRLs for client
	#   authentication or alternatively one huge file containing all
	#   of them (file must be PEM encoded)
	#   Note: Inside SSLCARevocationPath you need hash symlinks
	#         to point to the certificate files. Use the provided
	#         Makefile to update the hash symlinks after changes.
	#SSLCARevocationPath /etc/apache2/ssl.crl/
	#SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl

	#   Client Authentication (Type):
	#   Client certificate verification type and depth.  Types are
	#   none, optional, require and optional_no_ca.  Depth is a
	#   number which specifies how deeply to verify the certificate
	#   issuer chain before deciding the certificate is not valid.
	#SSLVerifyClient require
	#SSLVerifyDepth  10

	#   Access Control:
	#   With SSLRequire you can do per-directory access control based
	#   on arbitrary complex boolean expressions containing server
	#   variable checks and other lookup directives.  The syntax is a
	#   mixture between C and Perl.  See the mod_ssl documentation
	#   for more details.
	#
	#SSLRequire (    %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \
	#            and %{SSL_CLIENT_S_DN_O} eq "Snake Oil, Ltd." \
	#            and %{SSL_CLIENT_S_DN_OU} in {"Staff", "CA", "Dev"} \
	#            and %{TIME_WDAY} >= 1 and %{TIME_WDAY} <= 5 \
	#            and %{TIME_HOUR} >= 8 and %{TIME_HOUR} <= 20       ) \
	#           or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/
	#

	#   SSL Engine Options:
	#   Set various options for the SSL engine.
	#   o FakeBasicAuth:
	#     Translate the client X.509 into a Basic Authorisation.  This means that
	#     the standard Auth/DBMAuth methods can be used for access control.  The
	#     user name is the `one line' version of the client's X.509 certificate.
	#     Note that no password is obtained from the user. Every entry in the user
	#     file needs this password: `xxj31ZMTZzkVA'.
	#   o ExportCertData:
	#     This exports two additional environment variables: SSL_CLIENT_CERT and
	#     SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
	#     server (always existing) and the client (only existing when client
	#     authentication is used). This can be used to import the certificates
	#     into CGI scripts.
	#   o StdEnvVars:
	#     This exports the standard SSL/TLS related `SSL_*' environment variables.
	#     Per default this exportation is switched off for performance reasons,
	#     because the extraction step is an expensive operation and is usually
	#     useless for serving static content. So one usually enables the
	#     exportation for CGI and SSI requests only.
	#   o StrictRequire:
	#     This denies access when "SSLRequireSSL" or "SSLRequire" applied even
	#     under a "Satisfy any" situation, i.e. when it applies access is denied
	#     and no other module can change it.
	#   o OptRenegotiate:
	#     This enables optimized SSL connection renegotiation handling when SSL
	#     directives are used in per-directory context.
	#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
	
		SSLOptions +StdEnvVars
	
	
		SSLOptions +StdEnvVars
	

	#   SSL Protocol Adjustments:
	#   The safe and default but still SSL/TLS standard compliant shutdown
	#   approach is that mod_ssl sends the close notify alert but doesn't wait for
	#   the close notify alert from client. When you need a different shutdown
	#   approach you can use one of the following variables:
	#   o ssl-unclean-shutdown:
	#     This forces an unclean shutdown when the connection is closed, i.e. no
	#     SSL close notify alert is send or allowed to received.  This violates
	#     the SSL/TLS standard but is needed for some brain-dead browsers. Use
	#     this when you receive I/O errors because of the standard approach where
	#     mod_ssl sends the close notify alert.
	#   o ssl-accurate-shutdown:
	#     This forces an accurate shutdown when the connection is closed, i.e. a
	#     SSL close notify alert is send and mod_ssl waits for the close notify
	#     alert of the client. This is 100% SSL/TLS standard compliant, but in
	#     practice often causes hanging connections with brain-dead browsers. Use
	#     this only for browsers where you know that their SSL implementation
	#     works correctly.
	#   Notice: Most problems of broken clients are also related to the HTTP
	#   keep-alive facility, so you usually additionally want to disable
	#   keep-alive for those clients, too. Use variable "nokeepalive" for this.
	#   Similarly, one has to force some clients to use HTTP/1.0 to workaround
	#   their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
	#   "force-response-1.0" for this.
	BrowserMatch "MSIE [2-6]" \
		nokeepalive ssl-unclean-shutdown \
		downgrade-1.0 force-response-1.0
	# MSIE 7 and newer should be able to use keepalive
	BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown


default :
Code:

	ServerAdmin webmaster@localhost

	DocumentRoot /var/www
	
		Options FollowSymLinks
		AllowOverride None
	
	
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
	

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	
		AllowOverride None
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/access.log combined

A noter: dans les default-ssl tous les allowoverride sont à none.

Concernant l'ip privée qui serait dans le certificat, je ne vois pas ce que tu veux dire (je suis un peu newbie dans ce domaine).

Cordialement,
free.rage

free.rage
27/04/2015, 14h42
Bonjour,

Merci de ton aide.

En ce qui concerne les vHost, j'ai un fichier qui se nomme [nom du serveur] (qui n'a pas été modifié depuis le démarrage du serveur) :
Code:
cat /etc/apache2/sites-available/[nom du serveur] 


	DocumentRoot /var/www/
	ServerName [nom du serveur]

	SSLEngine on
	SSLCertificateFile /etc/apache2/ssl/[nom du serveur].crt
	SSLCertificateKeyFile /etc/apache2/ssl/[nom du serveur].key

	# /etc/apache2/conf.d/owncloud.conf

Il y a aussi deux fichiers : default et default-ssl

default-ssl :
Code:


	ServerAdmin webmaster@localhost

	DocumentRoot /var/www
	
		Options FollowSymLinks
		AllowOverride None
	
	
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
	

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	
		AllowOverride None
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined

	#   SSL Engine Switch:
	#   Enable/Disable SSL for this virtual host.
	SSLEngine on

	#   A self-signed (snakeoil) certificate can be created by installing
	#   the ssl-cert package. See
	#   /usr/share/doc/apache2.2-common/README.Debian.gz for more info.
	#   If both key and certificate are stored in the same file, only the
	#   SSLCertificateFile directive is needed.
	SSLCertificateFile    /etc/ssl/certs/ssl-cert-snakeoil.pem
	SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key

	#   Server Certificate Chain:
	#   Point SSLCertificateChainFile at a file containing the
	#   concatenation of PEM encoded CA certificates which form the
	#   certificate chain for the server certificate. Alternatively
	#   the referenced file can be the same as SSLCertificateFile
	#   when the CA certificates are directly appended to the server
	#   certificate for convinience.
	#SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt

	#   Certificate Authority (CA):
	#   Set the CA certificate verification path where to find CA
	#   certificates for client authentication or alternatively one
	#   huge file containing all of them (file must be PEM encoded)
	#   Note: Inside SSLCACertificatePath you need hash symlinks
	#         to point to the certificate files. Use the provided
	#         Makefile to update the hash symlinks after changes.
	#SSLCACertificatePath /etc/ssl/certs/
	#SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt

	#   Certificate Revocation Lists (CRL):
	#   Set the CA revocation path where to find CA CRLs for client
	#   authentication or alternatively one huge file containing all
	#   of them (file must be PEM encoded)
	#   Note: Inside SSLCARevocationPath you need hash symlinks
	#         to point to the certificate files. Use the provided
	#         Makefile to update the hash symlinks after changes.
	#SSLCARevocationPath /etc/apache2/ssl.crl/
	#SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl

	#   Client Authentication (Type):
	#   Client certificate verification type and depth.  Types are
	#   none, optional, require and optional_no_ca.  Depth is a
	#   number which specifies how deeply to verify the certificate
	#   issuer chain before deciding the certificate is not valid.
	#SSLVerifyClient require
	#SSLVerifyDepth  10

	#   Access Control:
	#   With SSLRequire you can do per-directory access control based
	#   on arbitrary complex boolean expressions containing server
	#   variable checks and other lookup directives.  The syntax is a
	#   mixture between C and Perl.  See the mod_ssl documentation
	#   for more details.
	#
	#SSLRequire (    %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \
	#            and %{SSL_CLIENT_S_DN_O} eq "Snake Oil, Ltd." \
	#            and %{SSL_CLIENT_S_DN_OU} in {"Staff", "CA", "Dev"} \
	#            and %{TIME_WDAY} >= 1 and %{TIME_WDAY} <= 5 \
	#            and %{TIME_HOUR} >= 8 and %{TIME_HOUR} <= 20       ) \
	#           or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/
	#

	#   SSL Engine Options:
	#   Set various options for the SSL engine.
	#   o FakeBasicAuth:
	#     Translate the client X.509 into a Basic Authorisation.  This means that
	#     the standard Auth/DBMAuth methods can be used for access control.  The
	#     user name is the `one line' version of the client's X.509 certificate.
	#     Note that no password is obtained from the user. Every entry in the user
	#     file needs this password: `xxj31ZMTZzkVA'.
	#   o ExportCertData:
	#     This exports two additional environment variables: SSL_CLIENT_CERT and
	#     SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
	#     server (always existing) and the client (only existing when client
	#     authentication is used). This can be used to import the certificates
	#     into CGI scripts.
	#   o StdEnvVars:
	#     This exports the standard SSL/TLS related `SSL_*' environment variables.
	#     Per default this exportation is switched off for performance reasons,
	#     because the extraction step is an expensive operation and is usually
	#     useless for serving static content. So one usually enables the
	#     exportation for CGI and SSI requests only.
	#   o StrictRequire:
	#     This denies access when "SSLRequireSSL" or "SSLRequire" applied even
	#     under a "Satisfy any" situation, i.e. when it applies access is denied
	#     and no other module can change it.
	#   o OptRenegotiate:
	#     This enables optimized SSL connection renegotiation handling when SSL
	#     directives are used in per-directory context.
	#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
	
		SSLOptions +StdEnvVars
	
	
		SSLOptions +StdEnvVars
	

	#   SSL Protocol Adjustments:
	#   The safe and default but still SSL/TLS standard compliant shutdown
	#   approach is that mod_ssl sends the close notify alert but doesn't wait for
	#   the close notify alert from client. When you need a different shutdown
	#   approach you can use one of the following variables:
	#   o ssl-unclean-shutdown:
	#     This forces an unclean shutdown when the connection is closed, i.e. no
	#     SSL close notify alert is send or allowed to received.  This violates
	#     the SSL/TLS standard but is needed for some brain-dead browsers. Use
	#     this when you receive I/O errors because of the standard approach where
	#     mod_ssl sends the close notify alert.
	#   o ssl-accurate-shutdown:
	#     This forces an accurate shutdown when the connection is closed, i.e. a
	#     SSL close notify alert is send and mod_ssl waits for the close notify
	#     alert of the client. This is 100% SSL/TLS standard compliant, but in
	#     practice often causes hanging connections with brain-dead browsers. Use
	#     this only for browsers where you know that their SSL implementation
	#     works correctly.
	#   Notice: Most problems of broken clients are also related to the HTTP
	#   keep-alive facility, so you usually additionally want to disable
	#   keep-alive for those clients, too. Use variable "nokeepalive" for this.
	#   Similarly, one has to force some clients to use HTTP/1.0 to workaround
	#   their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
	#   "force-response-1.0" for this.
	BrowserMatch "MSIE [2-6]" \
		nokeepalive ssl-unclean-shutdown \
		downgrade-1.0 force-response-1.0
	# MSIE 7 and newer should be able to use keepalive
	BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown


default :
Code:

	ServerAdmin webmaster@localhost

	DocumentRoot /var/www
	
		Options FollowSymLinks
		AllowOverride None
	
	
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
	

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	
		AllowOverride None
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/access.log combined

A noter: dans les default-ssl tous les allowoverride sont à none.

Concernant l'ip privée qui serait dans le certificat, je ne vois pas ce que tu veux dire (je suis un peu newbie dans ce domaine).

Merci de ton aide.
Cordialement,
free.rage

janus57
27/04/2015, 12h12
Bonjour,

l'ip privé est toujours avec le certificat SSL ?
Ils sont bien déclaré dans le VHost ?

Cordialement, janus57

free.rage
27/04/2015, 11h47
Bonjour,

Je me permets de solliciter de l'aide de la communauté car je rencontre un problème depuis peu et n'étant pas très pointu sur les partie SSL je préfère ne pas prendre le risque de dégrader la situation.

J'ai un serveur Owncloud (Kimsufi donc) depuis octobre dernier que j'ai configuré suivant les règles de sécurisation habituelles. Je le maintiens à jour plusieurs fois par semaine. Tout était parfait jusqu'à dimanche dernier, impossible de relancer le serveur Apache. Celui ci m'indique :
Code:
[....] Restarting web server: apache2Action 'start' failed.
The Apache error log may have more information.
 failed!
Après vérification du log, celui-ci présente les erreurs suivantes :
Code:
sn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error
[Mon Apr 27 11:38:04 2015] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Mon Apr 27 11:38:04 2015] [error] SSL Library Error: 218595386 error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error
[Mon Apr 27 11:38:04 2015] [error] SSL Library Error: 67710980 error:04093004:rsa routines:OLD_RSA_PRIV_DECODE:RSA lib
[Mon Apr 27 11:38:04 2015] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Mon Apr 27 11:38:04 2015] [error] SSL Library Error: 218595386 error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error
Je vérifie donc la clé SSL :
Code:
# /usr/bin/openssl rsa -noout -modulus -in /etc/apache2/ssl/[nom du serveur].key
unable to load Private Key
140160305907368:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:703:Expecting: ANY PRIVATE KEY
Voilà pourquoi je suspecte une erreur de clé SSL (certificat auto-signé), cependant je n'ai fait aucune modification récente là dessus. Et mes services étaient fonctionnels jusqu'à dimanche donc.

Est-ce qu'il serait possible que la clé ait expiré ? Voyez-vous comment je peux avancer dans ma résolution de problème ?

PS : Je précise que le serveur n'est plus accessible en HTTP en interrogeant directement l'@IP. Par le nom du serveur, je tombe sur l'index.html par défaut.