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Add option to disallow unprotected simple authentication.

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Add protected simple authentication as a "strong" mechanism.
This commit is contained in:
Kurt Zeilenga 2002-06-17 22:18:27 +00:00
parent 3ad829e389
commit 9a38d98d37
5 changed files with 35 additions and 9 deletions
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10
doc/man/man5/slapd.conf.5
View file

@ -195,6 +195,9 @@ disallow (default none).
disables acceptance of anonymous bind requests.
.B bind_simple
disables simple (bind) authentication.
.B bind_simple_unprotected
disables simple (bind) authentication when confidentiality
protections (e.g. TLS) are not in place.
.B bind_krbv4
disables Kerberos V4 (bind) authentication.
.B tls_2_anon
@ -506,11 +509,8 @@ requires authentication prior to directory operations.
requires SASL authentication prior to directory operations.
.B strong
requires strong authentication prior to directory operations.
The
.B SASL
and
.B strong
conditions are currently same.
The strong keyword allows protected "simple" authentication
as well as SASL authentication.
.B none
may be used to require no conditions (useful for clearly globally
set conditions within a particular database).

6
servers/slapd/backend.c
View file

@ -924,7 +924,8 @@ backend_check_restrictions(
if( requires & SLAP_REQUIRE_STRONG ) {
/* should check mechanism */
if( op->o_authmech.bv_len == 0 || op->o_dn.bv_len == 0 )
if( ( op->o_transport_ssf < ssf->sss_transport
&& op->o_authmech.bv_len == 0 ) || op->o_dn.bv_len == 0 )
{
*text = "strong authentication required";
return LDAP_STRONG_AUTH_REQUIRED;
@ -932,8 +933,7 @@ backend_check_restrictions(
}
if( requires & SLAP_REQUIRE_SASL ) {
if( op->o_authmech.bv_len == 0 || op->o_dn.bv_len == 0 )
{
if( op->o_authmech.bv_len == 0 || op->o_dn.bv_len == 0 ) {
*text = "SASL authentication required";
return LDAP_STRONG_AUTH_REQUIRED;
}

21
servers/slapd/bind.c
View file

@ -402,6 +402,27 @@ do_bind(
Debug( LDAP_DEBUG_TRACE,
"do_bind: v%d simple bind(%s) disallowed\n",
version, ndn.bv_val, 0 );
#endif
goto cleanup;
} else if (( global_disallows & SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED )
&& ( op->o_transport_ssf < global_ssf_set.sss_transport ))
{
rc = LDAP_CONFIDENTIALITY_REQUIRED;
text = "unwilling to perform simple authentication "
"without confidentilty protection";
send_ldap_result( conn, op, rc,
NULL, text, NULL, NULL );
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_INFO, "do_bind: conn %d "
"v%d unprotected simple bind(%s) disallowed\n",
conn->c_connid, version, ndn.bv_val ));
#else
Debug( LDAP_DEBUG_TRACE,
"do_bind: v%d unprotected simple bind(%s) disallowed\n",
version, ndn.bv_val, 0 );
#endif
goto cleanup;
}

3
servers/slapd/config.c
View file

@ -1289,6 +1289,9 @@ read_config( const char *fname )
} else if( strcasecmp( cargv[i], "bind_simple" ) == 0 ) {
disallows |= SLAP_DISALLOW_BIND_SIMPLE;
} else if( strcasecmp( cargv[i], "bind_simple_unprotected" ) == 0 ) {
disallows |= SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED;
} else if( strcasecmp( cargv[i], "bind_krbv4" ) == 0 ) {
disallows |= SLAP_DISALLOW_BIND_KRBV4;

4
servers/slapd/slap.h
View file

@ -1175,7 +1175,9 @@ struct slap_backend_db {
#define SLAP_DISALLOW_BIND_ANON 0x0001U /* no anonymous */
#define SLAP_DISALLOW_BIND_SIMPLE 0x0002U /* simple authentication */
#define SLAP_DISALLOW_BIND_KRBV4 0x0004U /* Kerberos V4 authentication */
#define SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED \
0x0004U /* unprotected simple auth */
#define SLAP_DISALLOW_BIND_KRBV4 0x0008U /* Kerberos V4 authentication */
#define SLAP_DISALLOW_TLS_2_ANON 0x0010U /* StartTLS -> Anonymous */
#define SLAP_DISALLOW_TLS_AUTHC 0x0020U /* TLS while authenticated */