Compare commits

...

10 Commits

Author SHA1 Message Date
openeuler-ci-bot
34f2dbd6cf
!80 Sync master release 'Remove pcre-devel dependency'
From: @wk333 
Reviewed-by: @wang--ge 
Signed-off-by: @wang--ge
2024-07-17 01:20:09 +00:00
wk333
75177be678 Sync master release 'Remove pcre-devel dependency' 2024-07-16 20:04:59 +08:00
openeuler-ci-bot
25dbca325f
!76 Fix CVE-2024-3596
From: @wk333 
Reviewed-by: @wang--ge 
Signed-off-by: @wang--ge
2024-07-16 09:39:50 +00:00
wk333
e2e00d8f89 Fix CVE-2024-3596 2024-07-16 16:50:33 +08:00
openeuler-ci-bot
9c1891827b
!63 Upgrade version to 3.2.3
From: @cherry530 
Reviewed-by: @wu-leilei 
Signed-off-by: @wu-leilei
2023-10-07 07:17:57 +00:00
cherry530
aca15f2e95 Upgrade version to 3.2.3
Signed-off-by: cherry530 <707078654@qq.com>
2023-09-28 16:43:57 +08:00
openeuler-ci-bot
54bcddcf95
!61 升级到 3.0.26解决openssl 升级引起的编译失败
From: @lyn1001 
Reviewed-by: @zhuchunyi 
Signed-off-by: @zhuchunyi
2023-02-02 08:10:23 +00:00
lyn1001
664e20b3c0 update to 3.0.26 2023-02-02 15:23:09 +08:00
openeuler-ci-bot
635fd56dc5
!56 fix CVE-2022-41859 and CVE-2022-41860 and CVE-2022-41861
From: @peng2285 
Reviewed-by: @gitee-cmd 
Signed-off-by: @gitee-cmd
2022-12-26 06:25:53 +00:00
peng2285
77b057c9a9 fix CVE-2022-41859 and CVE-2022-41860 and CVE-2022-41861 2022-12-26 11:58:57 +08:00
4 changed files with 792 additions and 4 deletions

765
CVE-2024-3596.patch Normal file
View File

@ -0,0 +1,765 @@
Refer:
https://build.opensuse.org/projects/SUSE:SLE-15-SP4:Update/packages/freeradius-server/files/CVE-2024-3596.patch?expand=1
https://github.com/FreeRADIUS/freeradius-server/commit/7d095e85531d4941b43c0ad6d5c880291625a585
diff -Nur freeradius-server-3.2.3_bak/man/man1/radclient.1 freeradius-server-3.2.3/man/man1/radclient.1
--- freeradius-server-3.2.3_bak/man/man1/radclient.1 2024-07-16 16:46:31.231616649 +0800
+++ freeradius-server-3.2.3/man/man1/radclient.1 2024-07-16 16:46:48.236642156 +0800
@@ -5,6 +5,7 @@
.B radclient
.RB [ \-4 ]
.RB [ \-6 ]
+.RB [ \-b ]
.RB [ \-c
.IR count ]
.RB [ \-d
@@ -52,6 +53,13 @@
Use IPv4 (default)
.IP \-6
Use IPv6
+.IP \-b
+Enforce the Blast RADIUS checks. All replies to an Access-Request packet
+must contain a Message-Authenticator as the first attribute.
+
+For compatibility with old servers, this flag is not set by default.
+However, radclient still checks for the Blast RADIUS signature, and
+discards packets which match the attack.
.IP \-c\ \fIcount\fP
Send each packet \fIcount\fP times.
.IP \-d\ \fIraddb_directory\fP
diff -Nur freeradius-server-3.2.3_bak/raddb/clients.conf freeradius-server-3.2.3/raddb/clients.conf
--- freeradius-server-3.2.3_bak/raddb/clients.conf 2024-07-16 16:46:31.233616652 +0800
+++ freeradius-server-3.2.3/raddb/clients.conf 2024-07-16 16:46:48.236642156 +0800
@@ -100,15 +100,30 @@
secret = testing123
#
- # Old-style clients do not send a Message-Authenticator
- # in an Access-Request. RFC 5080 suggests that all clients
- # SHOULD include it in an Access-Request. The configuration
- # item below allows the server to require it. If a client
- # is required to include a Message-Authenticator and it does
- # not, then the packet will be silently discarded.
+ # The global configuration "security.require_message_authenticator"
+ # flag sets the default for all clients. That default can be
+ # over-ridden here, by setting it to "no".
+ #
+ # This flag exists solely for legacy clients which do not send
+ # Message-Authenticator in all Access-Request packets. We do not
+ # recommend setting it to "no".
+ #
+ # allowed values: yes, no
+ #
+# require_message_authenticator = yes
+
+ #
+ # The global configuration "security.limit_proxy_state"
+ # flag sets the default for all clients. That default can be
+ # over-ridden here, by setting it to "no".
+ #
+ # This flag exists solely for legacy clients which do not send
+ # Message-Authenticator in all Access-Request packets. We do not
+ # recommend setting it to "no".
#
# allowed values: yes, no
- require_message_authenticator = no
+ #
+# limit_proxy_state = yes
#
# The short name is used as an alias for the fully qualified
diff -Nur freeradius-server-3.2.3_bak/raddb/proxy.conf freeradius-server-3.2.3/raddb/proxy.conf
--- freeradius-server-3.2.3_bak/raddb/proxy.conf 2024-07-16 16:46:31.242616665 +0800
+++ freeradius-server-3.2.3/raddb/proxy.conf 2024-07-16 16:46:48.237642158 +0800
@@ -252,6 +252,20 @@
#
secret = testing123
+ # The global configuration "security.require_message_authenticator"
+ # flag sets the default for all home servers. That default can be
+ # over-ridden here, by setting it to "no".
+ #
+ # This flag exists solely for legacy home servers which do
+ # not send Message-Authenticator in all Access-Accept,
+ # Access-Reject, or Access-Challenge packets. We do not
+ # recommend setting it to "no".
+ #
+ # allowed values: yes, no
+ #
+ #require_message_authenticator = no
+
+
############################################################
#
# The rest of the configuration items listed here are optional,
diff -Nur freeradius-server-3.2.3_bak/raddb/radiusd.conf.in freeradius-server-3.2.3/raddb/radiusd.conf.in
--- freeradius-server-3.2.3_bak/raddb/radiusd.conf.in 2024-07-16 16:46:31.242616665 +0800
+++ freeradius-server-3.2.3/raddb/radiusd.conf.in 2024-07-16 16:46:48.237642158 +0800
@@ -572,6 +572,64 @@
#
status_server = yes
+ #
+ # Global configuration for requiring Message-Authenticator
+ # in all Access-* packets sent over UDP or TCP. This flag
+ # is ignored for TLS.
+
+ #
+ # This flag sets the global default for all clients and home
+ # servers. It can be over-ridden in an individual client or
+ # home server definition by adding a flag to that section:
+ #
+ # require_message_authenticator = no
+ #
+ # If the server produces error message which says "Packet
+ # does not contain required Message-Authenticator attribute",
+ # then this configuration item has to be updated.
+ #
+ # WARNING: This item should always be left as "yes",
+ # otherwise it is possible for MITM attackers to create fake
+ # Access-Accept packets to the NAS!
+ #
+ require_message_authenticator = yes
+
+ #
+ # Global configuration for requiring Message-Authenticator
+ # Access-Request packets from a NAS, but only if those
+ # packets also contain Proxy-State. This flag only applies
+ # to packets sent over UDP or TCP. This flag is ignored for
+ # TLS.
+ #
+ # This flag sets the global default for all clients. It can
+ # be over-ridden in an individual client definition by adding
+ # a flag to that section:
+ #
+ # limit_proxy_state = no
+ #
+ # If "require_message_authenticator" is set to "yes", this
+ # configuration item is ignored.
+ #
+ # If "require_message_authenticator" is set to "no", this
+ # configuration item is checked.
+ #
+ # This configuration item should ALWAYS be set to "yes".
+ #
+ # The only reason to set it to "no" is when the client is a
+ # proxy, AND the proxy does not send Message-Authenticator in
+ # Access-Request packets. Even then, the best approach to
+ # fix the issue is to (1) update the proxy to send
+ # Message-Authenticator, and if that can't be done, then (2)
+ # set this flag to "no", but ONLY on a per-client basis.
+ #
+ # WARNING: Setting both this flag and the
+ # "require_message_authenticator" flag to "no" will allow
+ # MITM attackers to create fake Access-Accept packets to the
+ # NAS! At least one of them MUST be set to "yes" for the
+ # system to have any protection against the attack.
+ #
+ limit_proxy_state = yes
+
@openssl_version_check_config@
}
diff -Nur freeradius-server-3.2.3_bak/src/include/clients.h freeradius-server-3.2.3/src/include/clients.h
--- freeradius-server-3.2.3_bak/src/include/clients.h 2024-07-16 16:46:31.259616690 +0800
+++ freeradius-server-3.2.3/src/include/clients.h 2024-07-16 16:46:48.237642158 +0800
@@ -43,7 +43,9 @@
char const *secret; //!< Secret PSK.
- bool message_authenticator; //!< Require RADIUS message authenticator in requests.
+ bool require_ma; //!< Require RADIUS message authenticator in requests.
+
+ bool limit_proxy_state; //!< Limit Proxy-State in requests
char const *nas_type; //!< Type of client (arbitrary).
diff -Nur freeradius-server-3.2.3_bak/src/include/conffile.h freeradius-server-3.2.3/src/include/conffile.h
--- freeradius-server-3.2.3_bak/src/include/conffile.h 2024-07-16 16:46:31.259616690 +0800
+++ freeradius-server-3.2.3/src/include/conffile.h 2024-07-16 16:46:48.238642159 +0800
@@ -140,6 +140,7 @@
#define PW_TYPE_MULTI (1 << 18) //!< CONF_PAIR can have multiple copies.
#define PW_TYPE_NOT_EMPTY (1 << 19) //!< CONF_PAIR is required to have a non zero length value.
#define PW_TYPE_FILE_EXISTS ((1 << 20) | PW_TYPE_STRING) //!< File matching value must exist
+#define PW_TYPE_IGNORE_DEFAULT (1 << 21) //!< don't set from .dflt if the CONF_PAIR is missing
/* @} **/
#define FR_INTEGER_COND_CHECK(_name, _var, _cond, _new)\
diff -Nur freeradius-server-3.2.3_bak/src/include/libradius.h freeradius-server-3.2.3/src/include/libradius.h
--- freeradius-server-3.2.3_bak/src/include/libradius.h 2024-07-16 16:46:31.259616690 +0800
+++ freeradius-server-3.2.3/src/include/libradius.h 2024-07-16 16:46:48.238642159 +0800
@@ -410,6 +410,7 @@
#ifdef WITH_RADIUSV11
bool radiusv11;
#endif
+ bool tls; //!< uses secure transport
} RADIUS_PACKET;
typedef enum {
@@ -527,6 +528,11 @@
/* radius.c */
int rad_send(RADIUS_PACKET *, RADIUS_PACKET const *, char const *secret);
bool rad_packet_ok(RADIUS_PACKET *packet, int flags, decode_fail_t *reason);
+/*
+ * 1 == require_ma
+ * 2 == msg_peek
+ * 3 == limit_proxy_state
+ */
RADIUS_PACKET *rad_recv(TALLOC_CTX *ctx, int fd, int flags);
ssize_t rad_recv_header(int sockfd, fr_ipaddr_t *src_ipaddr, uint16_t *src_port, int *code);
void rad_recv_discard(int sockfd);
diff -Nur freeradius-server-3.2.3_bak/src/include/radiusd.h freeradius-server-3.2.3/src/include/radiusd.h
--- freeradius-server-3.2.3_bak/src/include/radiusd.h 2024-07-16 16:46:31.260616692 +0800
+++ freeradius-server-3.2.3/src/include/radiusd.h 2024-07-16 16:46:48.239642161 +0800
@@ -174,6 +174,9 @@
bool exiting; //!< are we exiting?
+ bool require_ma; //!< global configuration for all clients and home servers
+
+ bool limit_proxy_state; //!< global configuration for all clients
#ifdef ENABLE_OPENSSL_VERSION_CHECK
char const *allow_vulnerable_openssl; //!< The CVE number of the last security issue acknowledged.
diff -Nur freeradius-server-3.2.3_bak/src/include/realms.h freeradius-server-3.2.3/src/include/realms.h
--- freeradius-server-3.2.3_bak/src/include/realms.h 2024-07-16 16:46:31.260616692 +0800
+++ freeradius-server-3.2.3/src/include/realms.h 2024-07-16 16:46:48.239642161 +0800
@@ -69,6 +69,7 @@
bool dual; //!< One of a pair of homeservers on consecutive ports.
bool dynamic; //!< is this a dynamically added home server?
bool nonblock; //!< Enable a socket non-blocking to the home server.
+ bool require_ma; //!< for all replies to Access-Request and Status-Server
#ifdef WITH_COA_TUNNEL
bool recv_coa; //!< receive CoA packets, too
#endif
diff -Nur freeradius-server-3.2.3_bak/src/lib/radius.c freeradius-server-3.2.3/src/lib/radius.c
--- freeradius-server-3.2.3_bak/src/lib/radius.c 2024-07-16 16:46:31.262616695 +0800
+++ freeradius-server-3.2.3/src/lib/radius.c 2024-07-16 16:46:48.240642163 +0800
@@ -1831,6 +1831,7 @@
uint16_t total_length;
int len;
VALUE_PAIR const *reply;
+ bool seen_ma = false;
/*
* A 4K packet, aligned on 64-bits.
@@ -1909,6 +1910,27 @@
*/
/*
+ * Always add Message-Authenticator for replies to
+ * Access-Request packets.
+ *
+ * It must be the FIRST attribute in the packet.
+ */
+ if (!packet->tls &&
+ ((original && (original->code == PW_CODE_ACCESS_REQUEST)) ||
+ (packet->code == PW_CODE_ACCESS_REQUEST))) {
+ seen_ma = true;
+
+ packet->offset = RADIUS_HDR_LEN;
+
+ ptr[0] = PW_MESSAGE_AUTHENTICATOR;
+ ptr[1] = 18;
+ memset(ptr + 2, 0, 16);
+
+ ptr += 18;
+ total_length += 18;
+ }
+
+ /*
* Loop over the reply attributes for the packet.
*/
reply = packet->vps;
@@ -1984,15 +2006,13 @@
* length and initial value.
*/
if (!reply->da->vendor && (reply->da->attr == PW_MESSAGE_AUTHENTICATOR)) {
-#ifdef WITH_RADIUSV11
/*
- * RADIUSV11 does not encode or verify Message-Authenticator.
+ * We have already encoded the Message-Authenticator, don't do it again.
*/
- if (packet->radiusv11) {
+ if (seen_ma) {
reply = reply->next;
continue;
}
-#endif
if (room < 18) break;
@@ -2510,6 +2530,8 @@
char host_ipaddr[128];
#ifndef WITH_RADIUSV11_ONLY
bool require_ma = false;
+ bool limit_proxy_state = false;
+ bool seen_proxy_state = false;
bool seen_ma = false;
bool eap = false;
bool non_eap = false;
@@ -2561,13 +2583,14 @@
/*
* Message-Authenticator is required in Status-Server
* packets, otherwise they can be trivially forged.
- */
- if (hdr->code == PW_CODE_STATUS_SERVER) require_ma = true;
-
- /*
+ *
* It's also required if the caller asks for it.
+ *
+ * We only limit Proxy-State if we're not requiring
+ * Message-Authenticator.
*/
- if (flags) require_ma = true;
+ require_ma = ((flags & 0x01) != 0) || (hdr->code == PW_CODE_STATUS_SERVER);
+ limit_proxy_state = ((flags & 0x04) != 0) & !require_ma;
/*
* Repeat the length checks. This time, instead of
@@ -2731,6 +2754,10 @@
non_eap = true;
break;
+ case PW_PROXY_STATE:
+ seen_proxy_state = true;
+ break;
+
case PW_MESSAGE_AUTHENTICATOR:
#ifdef WITH_RADIUSV11
/*
@@ -2817,6 +2844,18 @@
inet_ntop(packet->src_ipaddr.af,
&packet->src_ipaddr.ipaddr,
host_ipaddr, sizeof(host_ipaddr)));
+ failure = DECODE_FAIL_MA_MISSING;
+ goto finish;
+ }
+
+ /*
+ * The client is a NAS which shouldn't send Proxy-State, but it did!
+ */
+ if (limit_proxy_state && seen_proxy_state && !seen_ma) {
+ FR_DEBUG_STRERROR_PRINTF("Insecure packet from host %s: Packet does not contain required Message-Authenticator attribute, but still has one or more Proxy-State attributes",
+ inet_ntop(packet->src_ipaddr.af,
+ &packet->src_ipaddr.ipaddr,
+ host_ipaddr, sizeof(host_ipaddr)));
failure = DECODE_FAIL_MA_MISSING;
goto finish;
}
diff -Nur freeradius-server-3.2.3_bak/src/main/client.c freeradius-server-3.2.3/src/main/client.c
--- freeradius-server-3.2.3_bak/src/main/client.c 2024-07-16 16:46:31.263616696 +0800
+++ freeradius-server-3.2.3/src/main/client.c 2024-07-16 16:46:48.241642164 +0800
@@ -328,7 +328,8 @@
(old->coa_home_server == client->coa_home_server) &&
(old->coa_home_pool == client->coa_home_pool) &&
#endif
- (old->message_authenticator == client->message_authenticator)) {
+ (old->require_ma == client->require_ma) &&
+ (old->limit_proxy_state == client->limit_proxy_state)) {
WARN("Ignoring duplicate client %s", client->longname);
client_free(client);
return true;
@@ -512,7 +513,8 @@
{ "src_ipaddr", FR_CONF_POINTER(PW_TYPE_STRING, &cl_srcipaddr), NULL },
- { "require_message_authenticator", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, RADCLIENT, message_authenticator), "no" },
+ { "require_message_authenticator", FR_CONF_OFFSET(PW_TYPE_BOOLEAN | PW_TYPE_IGNORE_DEFAULT, RADCLIENT, require_ma), NULL },
+ { "limit_proxy_state", FR_CONF_OFFSET(PW_TYPE_BOOLEAN | PW_TYPE_IGNORE_DEFAULT, RADCLIENT, limit_proxy_state), NULL },
{ "secret", FR_CONF_OFFSET(PW_TYPE_STRING | PW_TYPE_SECRET, RADCLIENT, secret), NULL },
{ "shortname", FR_CONF_OFFSET(PW_TYPE_STRING, RADCLIENT, shortname), NULL },
@@ -724,7 +726,7 @@
{ "FreeRADIUS-Client-Src-IP-Address", FR_CONF_OFFSET(PW_TYPE_IPV4_ADDR, RADCLIENT, src_ipaddr), NULL },
{ "FreeRADIUS-Client-Src-IPv6-Address", FR_CONF_OFFSET(PW_TYPE_IPV6_ADDR, RADCLIENT, src_ipaddr), NULL },
- { "FreeRADIUS-Client-Require-MA", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, RADCLIENT, message_authenticator), NULL },
+ { "FreeRADIUS-Client-Require-MA", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, RADCLIENT, require_ma), NULL },
{ "FreeRADIUS-Client-Secret", FR_CONF_OFFSET(PW_TYPE_STRING, RADCLIENT, secret), "" },
{ "FreeRADIUS-Client-Shortname", FR_CONF_OFFSET(PW_TYPE_STRING, RADCLIENT, shortname), "" },
@@ -906,6 +908,15 @@
c = talloc_zero(ctx, RADCLIENT);
c->cs = cs;
+ /*
+ * Set the "require message authenticator" and "limit
+ * proxy state" flags from the global default. If the
+ * configuration item exists, AND is set, it will
+ * over-ride the flag.
+ */
+ c->require_ma = main_config.require_ma;
+ c->limit_proxy_state = main_config.limit_proxy_state;
+
memset(&cl_ipaddr, 0, sizeof(cl_ipaddr));
cl_netmask = 255;
@@ -1233,7 +1244,7 @@
if (shortname) c->shortname = talloc_typed_strdup(c, shortname);
if (type) c->nas_type = talloc_typed_strdup(c, type);
if (server) c->server = talloc_typed_strdup(c, server);
- c->message_authenticator = require_ma;
+ c->require_ma = require_ma;
return c;
}
diff -Nur freeradius-server-3.2.3_bak/src/main/conffile.c freeradius-server-3.2.3/src/main/conffile.c
--- freeradius-server-3.2.3_bak/src/main/conffile.c 2024-07-16 16:46:31.263616696 +0800
+++ freeradius-server-3.2.3/src/main/conffile.c 2024-07-16 16:46:48.242642166 +0800
@@ -1424,6 +1424,7 @@
{
int rcode;
bool deprecated, required, attribute, secret, file_input, cant_be_empty, tmpl, multi, file_exists;
+ bool ignore_dflt;
char **q;
char const *value;
CONF_PAIR *cp = NULL;
@@ -1447,6 +1448,7 @@
cant_be_empty = (type & PW_TYPE_NOT_EMPTY);
tmpl = (type & PW_TYPE_TMPL);
multi = (type & PW_TYPE_MULTI);
+ ignore_dflt = (type & PW_TYPE_IGNORE_DEFAULT);
if (attribute) required = true;
if (required) cant_be_empty = true; /* May want to review this in the future... */
@@ -1470,7 +1472,7 @@
* section, use the default value.
*/
if (!cp) {
- if (deprecated) return 0; /* Don't set the default value */
+ if (deprecated || ignore_dflt) return 0; /* Don't set the default value */
rcode = 1;
value = dflt;
diff -Nur freeradius-server-3.2.3_bak/src/main/listen.c freeradius-server-3.2.3/src/main/listen.c
--- freeradius-server-3.2.3_bak/src/main/listen.c 2024-07-16 16:46:31.263616696 +0800
+++ freeradius-server-3.2.3/src/main/listen.c 2024-07-16 16:46:48.243642167 +0800
@@ -1947,7 +1947,7 @@
* Now that we've sanity checked everything, receive the
* packet.
*/
- packet = rad_recv(ctx, listener->fd, client->message_authenticator);
+ packet = rad_recv(ctx, listener->fd, client->require_ma | (((int) client->limit_proxy_state) << 2));
if (!packet) {
FR_STATS_INC(auth, total_malformed_requests);
if (DEBUG_ENABLED) ERROR("Receive - %s", fr_strerror());
@@ -2343,7 +2343,7 @@
* Now that we've sanity checked everything, receive the
* packet.
*/
- packet = rad_recv(ctx, listener->fd, client->message_authenticator);
+ packet = rad_recv(ctx, listener->fd, client->require_ma);
if (!packet) {
FR_STATS_INC(coa, total_malformed_requests);
if (DEBUG_ENABLED) ERROR("Receive - %s", fr_strerror());
diff -Nur freeradius-server-3.2.3_bak/src/main/mainconfig.c freeradius-server-3.2.3/src/main/mainconfig.c
--- freeradius-server-3.2.3_bak/src/main/mainconfig.c 2024-07-16 16:46:31.264616698 +0800
+++ freeradius-server-3.2.3/src/main/mainconfig.c 2024-07-16 16:46:48.243642167 +0800
@@ -160,6 +160,8 @@
{ "max_attributes", FR_CONF_POINTER(PW_TYPE_INTEGER, &fr_max_attributes), STRINGIFY(0) },
{ "reject_delay", FR_CONF_POINTER(PW_TYPE_TIMEVAL, &main_config.reject_delay), STRINGIFY(0) },
{ "status_server", FR_CONF_POINTER(PW_TYPE_BOOLEAN, &main_config.status_server), "no"},
+ { "require_message_authenticator", FR_CONF_POINTER(PW_TYPE_BOOLEAN, &main_config.require_ma), "yes"},
+ { "limit_proxy_state", FR_CONF_POINTER(PW_TYPE_BOOLEAN, &main_config.limit_proxy_state), "yes"},
#ifdef ENABLE_OPENSSL_VERSION_CHECK
{ "allow_vulnerable_openssl", FR_CONF_POINTER(PW_TYPE_STRING, &main_config.allow_vulnerable_openssl), "no"},
#endif
diff -Nur freeradius-server-3.2.3_bak/src/main/process.c freeradius-server-3.2.3/src/main/process.c
--- freeradius-server-3.2.3_bak/src/main/process.c 2024-07-16 16:46:31.264616698 +0800
+++ freeradius-server-3.2.3/src/main/process.c 2024-07-16 16:46:48.244642169 +0800
@@ -2790,11 +2790,25 @@
* server core, but I guess we can fix that later.
*/
if (!request->proxy_reply) {
+ decode_fail_t reason;
+
+ /*
+ * If the home server configuration requires a Message-Authenticator, then set the flag,
+ * but only if the proxied packet is Access-Request or Status-Sercer.
+ *
+ * The realms.c file already clears require_ma for TLS connections.
+ */
+ bool require_ma = request->home_server->require_ma && (request->proxy->code == PW_CODE_ACCESS_REQUEST);
if (!request->home_server) {
proxy_reply_too_late(request);
return 0;
}
+ if (!rad_packet_ok(packet, require_ma, &reason)) {
+ DEBUG("Ignoring invalid packet - %s", fr_strerror());
+ return 0;
+ }
+
if (rad_verify(packet, request->proxy,
request->home_server->secret) != 0) {
DEBUG("Ignoring spoofed proxy reply. Signature is invalid");
diff -Nur freeradius-server-3.2.3_bak/src/main/radclient.c freeradius-server-3.2.3/src/main/radclient.c
--- freeradius-server-3.2.3_bak/src/main/radclient.c 2024-07-16 16:46:31.264616698 +0800
+++ freeradius-server-3.2.3/src/main/radclient.c 2024-07-16 16:46:48.245642170 +0800
@@ -60,6 +60,7 @@
static int resend_count = 1;
static bool done = true;
static bool print_filename = false;
+static bool blast_radius = false;
static fr_ipaddr_t client_ipaddr;
static uint16_t client_port = 0;
@@ -95,6 +96,7 @@
fprintf(stderr, " <command> One of auth, acct, status, coa, disconnect or auto.\n");
fprintf(stderr, " -4 Use IPv4 address of server\n");
fprintf(stderr, " -6 Use IPv6 address of server.\n");
+ fprintf(stderr, " -b Mandate checks for Blast RADIUS issue (this is not set by default).\n");
fprintf(stderr, " -c <count> Send each packet 'count' times.\n");
fprintf(stderr, " -d <raddb> Set user dictionary directory (defaults to " RADDBDIR ").\n");
fprintf(stderr, " -D <dictdir> Set main dictionary directory (defaults to " DICTDIR ").\n");
@@ -1060,6 +1062,131 @@
}
/*
+ * Do Blast RADIUS checks.
+ *
+ * The request is an Access-Request, and does NOT contain Proxy-State.
+ *
+ * The reply is a raw packet, and is NOT yet decoded.
+ */
+static int blast_radius_check(rc_request_t *request, RADIUS_PACKET *reply)
+{
+ uint8_t *attr, *end;
+ VALUE_PAIR *vp;
+ bool have_message_authenticator = false;
+
+ /*
+ * We've received a raw packet. Nothing has (as of yet) checked
+ * anything in it other than the length, and that it's a
+ * well-formed RADIUS packet.
+ */
+ switch (reply->data[0]) {
+ case PW_CODE_ACCESS_ACCEPT:
+ case PW_CODE_ACCESS_REJECT:
+ case PW_CODE_ACCESS_CHALLENGE:
+ if (reply->data[1] != request->packet->id) {
+ ERROR("Invalid reply ID %d to Access-Request ID %d", reply->data[1], request->packet->id);
+ return -1;
+ }
+ break;
+
+ default:
+ ERROR("Invalid reply code %d to Access-Request", reply->data[0]);
+ return -1;
+ }
+
+ /*
+ * If the reply has a Message-Authenticator, then it MIGHT be fine.
+ */
+ attr = reply->data + 20;
+ end = reply->data + reply->data_len;
+
+ /*
+ * It should be the first attribute, so we warn if it isn't there.
+ *
+ * But it's not a fatal error.
+ */
+ if (blast_radius && (attr[0] != PW_MESSAGE_AUTHENTICATOR)) {
+ RDEBUG("WARNING The %s reply packet does not have Message-Authenticator as the first attribute. The packet may be vulnerable to Blast RADIUS attacks.",
+ fr_packet_codes[reply->data[0]]);
+ }
+
+ /*
+ * Set up for Proxy-State checks.
+ *
+ * If we see a Proxy-State in the reply which we didn't send, then it's a Blast RADIUS attack.
+ */
+ vp = fr_pair_find_by_num(request->packet->vps, PW_PROXY_STATE, 0, TAG_ANY);
+
+ while (attr < end) {
+ /*
+ * Blast RADIUS work-arounds require that
+ * Message-Authenticator is the first attribute in the
+ * reply. Note that we don't check for it being the
+ * first attribute, but simply that it exists.
+ *
+ * That check is a balance between securing the reply
+ * packet from attacks, and not violating the RFCs which
+ * say that there is no order to attributes in the
+ * packet.
+ *
+ * However, no matter the status of the '-b' flag we
+ * still can check for the signature of the attack, and
+ * discard packets which are suspicious. This behavior
+ * protects radclient from the attack, without mandating
+ * new behavior on the server side.
+ *
+ * Note that we don't set the '-b' flag by default.
+ * radclient is intended for testing / debugging, and is
+ * not intended to be used as part of a secure login /
+ * user checking system.
+ */
+ if (attr[0] == PW_MESSAGE_AUTHENTICATOR) {
+ have_message_authenticator = true;
+ goto next;
+ }
+
+ /*
+ * If there are Proxy-State attributes in the reply, they must
+ * match EXACTLY the Proxy-State attributes in the request.
+ *
+ * Note that we don't care if there are more Proxy-States
+ * in the request than in the reply. The Blast RADIUS
+ * issue requires _adding_ Proxy-State attributes, and
+ * cannot work when the server _deletes_ Proxy-State
+ * attributes.
+ */
+ if (attr[0] == PW_PROXY_STATE) {
+ if (!vp || (vp->length != (size_t) (attr[1] - 2)) || (memcmp(vp->vp_octets, attr + 2, vp->length) != 0)) {
+ ERROR("Invalid reply to Access-Request ID %d - Discarding packet due to Blast RADIUS attack being detected.", request->packet->id);
+ ERROR("We received a Proxy-State in the reply which we did not send, or which is different from what we sent.");
+ return -1;
+ }
+
+ vp = fr_pair_find_by_num(vp->next, PW_PROXY_STATE, 0, TAG_ANY);
+ }
+
+ next:
+ attr += attr[1];
+ }
+
+ /*
+ * If "-b" is set, then we require Message-Authenticator in the reply.
+ */
+ if (blast_radius && !have_message_authenticator) {
+ ERROR("The %s reply packet does not contain Message-Authenticator - discarding packet due to Blast RADIUS checks.",
+ fr_packet_codes[reply->data[0]]);
+ return -1;
+ }
+
+ /*
+ * The packet doesn't look like it's a Blast RADIUS attack. The
+ * caller will now verify the packet signature.
+ */
+ return 0;
+}
+
+
+/*
* Receive one packet, maybe.
*/
static int recv_one_packet(int wait_time)
@@ -1111,6 +1238,20 @@
request = fr_packet2myptr(rc_request_t, packet, packet_p);
/*
+ * We want radclient to be able to send any packet, including
+ * imperfect ones. However, we do NOT want to be vulnerable to
+ * the "Blast RADIUS" issue. Instead of adding command-line
+ * flags to enable/disable similar flags to what the server
+ * sends, we just do a few more smart checks to double-check
+ * things.
+ */
+ if ((request->packet->code == PW_CODE_ACCESS_REQUEST) &&
+ blast_radius_check(request, reply) < 0) {
+ rad_free(&reply);
+ return -1;
+ }
+
+ /*
* Fails the signature validation: not a real reply.
* FIXME: Silently drop it and listen for another packet.
*/
@@ -1243,7 +1384,7 @@
exit(1);
}
- while ((c = getopt(argc, argv, "46c:d:D:f:Fhn:p:qr:sS:t:vx"
+ while ((c = getopt(argc, argv, "46bc:d:D:f:Fhn:p:qr:sS:t:vx"
#ifdef WITH_TCP
"P:"
#endif
@@ -1256,6 +1397,10 @@
force_af = AF_INET6;
break;
+ case 'b':
+ blast_radius = true;
+ break;
+
case 'c':
if (!isdigit((uint8_t) *optarg)) usage();
diff -Nur freeradius-server-3.2.3_bak/src/main/realms.c freeradius-server-3.2.3/src/main/realms.c
--- freeradius-server-3.2.3_bak/src/main/realms.c 2024-07-16 16:46:31.265616699 +0800
+++ freeradius-server-3.2.3/src/main/realms.c 2024-07-16 16:46:48.246642172 +0800
@@ -477,6 +477,7 @@
static CONF_PARSER home_server_config[] = {
{ "nonblock", FR_CONF_OFFSET(PW_TYPE_BOOLEAN, home_server_t, nonblock), "no" },
+ { "require_message_authenticator", FR_CONF_OFFSET(PW_TYPE_BOOLEAN | PW_TYPE_IGNORE_DEFAULT, home_server_t, require_ma), NULL },
{ "ipaddr", FR_CONF_OFFSET(PW_TYPE_COMBO_IP_ADDR, home_server_t, ipaddr), NULL },
{ "ipv4addr", FR_CONF_OFFSET(PW_TYPE_IPV4_ADDR, home_server_t, ipaddr), NULL },
{ "ipv6addr", FR_CONF_OFFSET(PW_TYPE_IPV6_ADDR, home_server_t, ipaddr), NULL },
@@ -780,6 +781,7 @@
home->cs = cs;
home->state = HOME_STATE_UNKNOWN;
home->proto = IPPROTO_UDP;
+ home->require_ma = main_config.require_ma;
/*
* Parse the configuration into the home server
@@ -1116,6 +1118,11 @@
if (tls) {
int rcode;
+ /*
+ * We don't require this for TLS connections.
+ */
+ home->require_ma = false;
+
home->tls = tls_client_conf_parse(tls);
if (!home->tls) {
goto error;
diff -Nur freeradius-server-3.2.3_bak/src/main/tls_listen.c freeradius-server-3.2.3/src/main/tls_listen.c
--- freeradius-server-3.2.3_bak/src/main/tls_listen.c 2024-07-16 16:46:31.265616699 +0800
+++ freeradius-server-3.2.3/src/main/tls_listen.c 2024-07-16 16:49:00.185840125 +0800
@@ -674,6 +674,8 @@
packet->radiusv11 = sock->radiusv11;
#endif
+ packet->tls = true;
+
if (!rad_packet_ok(packet, 0, NULL)) {
if (DEBUG_ENABLED) ERROR("Receive - %s", fr_strerror());
DEBUG("(TLS) Closing TLS socket from client");
@@ -1286,6 +1288,7 @@
}
#endif
+ packet->tls = true;
/*
* FIXME: Client MIB updates?
@@ -1322,7 +1325,6 @@
break;
#endif
#endif
-
default:
#ifdef WITH_COA_TUNNEL
bad_packet:
@@ -1373,6 +1375,7 @@
* if there's no packet, encode it here.
*/
if (!request->proxy->data) {
+ request->reply->tls = true;
request->proxy_listener->proxy_encode(request->proxy_listener,
request);
}
@@ -1508,6 +1511,8 @@
if ((listener->status != RAD_LISTEN_STATUS_INIT &&
(listener->status != RAD_LISTEN_STATUS_KNOWN))) return 0;
+ request->reply->tls = true;
+
/*
* Pack the VPs
*/

Binary file not shown.

Binary file not shown.

View File

@ -3,8 +3,8 @@
%define perl_version %(eval "`%{__perl} -V:version`"; echo $version)
Name: freeradius
Version: 3.0.25
Release: 1
Version: 3.2.3
Release: 3
Summary: Remote Authentication Dial-In User Service
License: GPLv2+ and LGPLv2+
@ -14,10 +14,11 @@ Source1: radiusd.service
Source2: freeradius-logrotate
Source3: freeradius-pam-conf
Source4: freeradius-tmpfiles.conf
Patch0: CVE-2024-3596.patch
BuildRequires: autoconf gdbm-devel openssl openssl-devel pam-devel zlib-devel net-snmp-devel
BuildRequires: net-snmp-utils readline-devel libpcap-devel systemd-units libtalloc-devel
BuildRequires: pcre-devel unixODBC-devel json-c-devel libcurl-devel gcc chrpath
BuildRequires: unixODBC-devel json-c-devel libcurl-devel gcc chrpath
Requires: openssl >= %{openssl_version}
Requires(pre): shadow-utils glibc-common
@ -255,6 +256,7 @@ exit 0
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-config/files/*
%dir %attr(750,root,radiusd) /etc/raddb/mods-config/preprocess
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-config/preprocess/*
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-config/realm/freeradius-naptr-to-home-server.sh
%dir %attr(750,root,radiusd) /etc/raddb/mods-config/sql
%dir %attr(750,root,radiusd) /etc/raddb/mods-config/sql/{counter,cui,ippool,ippool-dhcp,main}
@ -272,6 +274,9 @@ exit 0
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{robust-proxy-accounting,soh,coa,coa-relay,example}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{inner-tunnel,dhcp,check-eap-tls,status}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{dhcp.relay,virtual.example.com}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/google-ldap-auth
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/tls-cache
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/aws-nlb
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{originate-coa,vmps,default}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{proxy-inner-tunnel,dynamic-clients}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/sites-available/{copy-acct-to-home-server,buffered-sql}
@ -286,13 +291,14 @@ exit 0
# /etc/raddb/mods-available/ dir
%dir %attr(750,root,radiusd) /etc/raddb/mods-available
/etc/raddb/mods-available/README.rst
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{always,attr_filter,cache}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{always,attr_filter,cache,cache_auth}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{cache_eap,chap,counter,cui,date}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{detail,detail.example.com,detail.log}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{dhcp,dhcp_sqlippool,digest}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{dynamic_clients,eap,echo,etc_group}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{exec,expiration,expr,files,idn}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{inner-eap,ippool,linelog,logintime}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/ldap_google
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{mac2ip,mac2vlan,mschap,ntlm_auth}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{opendirectory,otp,pam,pap,passwd}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{preprocess,python3,python,radutmp,realm}
@ -301,6 +307,7 @@ exit 0
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{sqlippool,sradutmp,unix,unpack}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{utf8,wimax,yubikey}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/{dhcp_files,dhcp_passwd,dhcp_sql,sql_map,totp}
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/json
%exclude /etc/raddb/mods-available/{unbound,couchbase,abfab*,moonshot-targeted-ids}
# /etc/raddb/mods-enabled dir
@ -345,6 +352,7 @@ exit 0
%{_libdir}/freeradius/{rlm_sometimes.so,rlm_sql.so,rlm_sqlcounter.so,rlm_sqlippool.so,rlm_sql_null.so}
%{_libdir}/freeradius/{rlm_unix.so,rlm_unpack.so,rlm_utf8.so,rlm_wimax.so,rlm_yubikey.so}
%{_libdir}/freeradius/{rlm_sql_map.so,rlm_totp.so}
%{_libdir}/freeradius/rlm_json.so
%exclude %{_libdir}/freeradius/{*.a,*.la,rlm_test.so}
# MIB files
@ -489,6 +497,21 @@ exit 0
%attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/ldap
%changelog
* Tue Jul 16 2024 wangkai <13474090681@163.com> - 3.2.3-3
- Fix CVE-2024-3596
* Tue Mar 12 2024 yaoxin <yao_xin001@hoperun.com> - 3.2.3-2
- Remove pcre-devel dependency
* Thu Sep 28 2023 xu_ping <707078654@qq.com> - 3.2.3-1
- Update to 3.2.3
* Thu Feb 2 2023 liyanan <liyanan32@h-partners.com> - 3.0.26-1
- Update to 3.0.26
* Wed Dec 21 2022 jiangpeng <jiangpeng01@ncti-gba.cn> - 3.0.25-2
- Fix CVE-2022-41859 and CVE-2022-41860 and CVE-2022-41861
* Thu Dec 30 2021 baizhonggui <baizhonggui@huawei.com> - 3.0.25-1
- update to 3.0.25