diff options
Diffstat (limited to 'meta-networking/recipes-connectivity/samba/samba/CVE-2023-0922.patch')
| -rw-r--r-- | meta-networking/recipes-connectivity/samba/samba/CVE-2023-0922.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/meta-networking/recipes-connectivity/samba/samba/CVE-2023-0922.patch b/meta-networking/recipes-connectivity/samba/samba/CVE-2023-0922.patch new file mode 100644 index 0000000000..b8cb06bee1 --- /dev/null +++ b/meta-networking/recipes-connectivity/samba/samba/CVE-2023-0922.patch @@ -0,0 +1,111 @@ +From 04e5a7eb03a1e913f34d77b7b6c2353b41ef546a Mon Sep 17 00:00:00 2001 +From: Rob van der Linde <rob@catalyst.net.nz> +Date: Mon, 27 Feb 2023 14:06:23 +1300 +Subject: [PATCH] CVE-2023-0922 set default ldap client sasl wrapping to seal + +This avoids sending new or reset passwords in the clear +(integrity protected only) from samba-tool in particular. + +BUG: https://bugzilla.samba.org/show_bug.cgi?id=15315 + +Signed-off-by: Rob van der Linde <rob@catalyst.net.nz> +Signed-off-by: Andrew Bartlett <abartlet@samba.org> +Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz> + +CVE: CVE-2023-0922 + +Upstream-Status: Backport [https://github.com/samba-team/samba/commit/04e5a7eb03a] + +Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com> +--- + .../ldap/clientldapsaslwrapping.xml | 27 +++++++++---------- + lib/param/loadparm.c | 2 +- + python/samba/tests/auth_log.py | 2 +- + source3/param/loadparm.c | 2 +- + 4 files changed, 16 insertions(+), 17 deletions(-) + +diff --git a/docs-xml/smbdotconf/ldap/clientldapsaslwrapping.xml b/docs-xml/smbdotconf/ldap/clientldapsaslwrapping.xml +index 3152f06..21bd209 100644 +--- a/docs-xml/smbdotconf/ldap/clientldapsaslwrapping.xml ++++ b/docs-xml/smbdotconf/ldap/clientldapsaslwrapping.xml +@@ -18,25 +18,24 @@ + </para> + + <para> +- This option is needed in the case of Domain Controllers enforcing +- the usage of signed LDAP connections (e.g. Windows 2000 SP3 or higher). +- LDAP sign and seal can be controlled with the registry key +- "<literal>HKLM\System\CurrentControlSet\Services\</literal> +- <literal>NTDS\Parameters\LDAPServerIntegrity</literal>" +- on the Windows server side. +- </para> ++ This option is needed firstly to secure the privacy of ++ administrative connections from <command>samba-tool</command>, ++ including in particular new or reset passwords for users. For ++ this reason the default is <emphasis>seal</emphasis>.</para> + +- <para> +- Depending on the used KRB5 library (MIT and older Heimdal versions) +- it is possible that the message "integrity only" is not supported. +- In this case, <emphasis>sign</emphasis> is just an alias for +- <emphasis>seal</emphasis>. ++ <para>Additionally, <command>winbindd</command> and the ++ <command>net</command> tool can use LDAP to communicate with ++ Domain Controllers, so this option also controls the level of ++ privacy for those connections. All supported AD DC versions ++ will enforce the usage of at least signed LDAP connections by ++ default, so a value of at least <emphasis>sign</emphasis> is ++ required in practice. + </para> + + <para> +- The default value is <emphasis>sign</emphasis>. That implies synchronizing the time ++ The default value is <emphasis>seal</emphasis>. That implies synchronizing the time + with the KDC in the case of using <emphasis>Kerberos</emphasis>. + </para> + </description> +-<value type="default">sign</value> ++<value type="default">seal</value> + </samba:parameter> +diff --git a/lib/param/loadparm.c b/lib/param/loadparm.c +index 75687f5..d260691 100644 +--- a/lib/param/loadparm.c ++++ b/lib/param/loadparm.c +@@ -2970,7 +2970,7 @@ struct loadparm_context *loadparm_init(TALLOC_CTX *mem_ctx) + + lpcfg_do_global_parameter(lp_ctx, "ldap debug threshold", "10"); + +- lpcfg_do_global_parameter(lp_ctx, "client ldap sasl wrapping", "sign"); ++ lpcfg_do_global_parameter(lp_ctx, "client ldap sasl wrapping", "seal"); + + lpcfg_do_global_parameter(lp_ctx, "mdns name", "netbios"); + +diff --git a/python/samba/tests/auth_log.py b/python/samba/tests/auth_log.py +index 8ac76fe..d2db380 100644 +--- a/python/samba/tests/auth_log.py ++++ b/python/samba/tests/auth_log.py +@@ -471,7 +471,7 @@ class AuthLogTests(samba.tests.auth_log_base.AuthLogTestBase): + def isLastExpectedMessage(msg): + return (msg["type"] == "Authorization" and + msg["Authorization"]["serviceDescription"] == "LDAP" and +- msg["Authorization"]["transportProtection"] == "SIGN" and ++ msg["Authorization"]["transportProtection"] == "SEAL" and + msg["Authorization"]["authType"] == "krb5") + + self.samdb = SamDB(url="ldap://%s" % os.environ["SERVER"], +diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c +index a99ab35..c47c5f6 100644 +--- a/source3/param/loadparm.c ++++ b/source3/param/loadparm.c +@@ -754,7 +754,7 @@ static void init_globals(struct loadparm_context *lp_ctx, bool reinit_globals) + Globals.ldap_debug_level = 0; + Globals.ldap_debug_threshold = 10; + +- Globals.client_ldap_sasl_wrapping = ADS_AUTH_SASL_SIGN; ++ Globals.client_ldap_sasl_wrapping = ADS_AUTH_SASL_SEAL; + + Globals.ldap_server_require_strong_auth = + LDAP_SERVER_REQUIRE_STRONG_AUTH_YES; +-- +2.40.0 + |