cyrus-sasl: CVE-2022-24407 failure to properly escape SQL input allows an attacker to execute arbitrary SQL commands

Source: https://github.com/cyrusimap/cyrus-sasl
MR: 118501
Type: Security Fix
Disposition: Backport from https://github.com/cyrusimap/cyrus-sasl/commit/9eff746c9daecbcc0041b09a5a51ba30738cdcbc
ChangeID: 5e0fc4c28d97b498128e4aa5d3e7c012e914ef51
Description:
       CVE-2022-24407 cyrus-sasl: failure to properly escape SQL input allows an attacker to execute arbitrary SQL commands.

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-networking/recipes-daemons/cyrus-sasl/cyrus-sasl/CVE-2022-24407.patch

@@ -0,0 +1,83 @@
+From 906b863c5308567086c6437ce17335b1922a78d1 Mon Sep 17 00:00:00 2001
+From: Hitendra Prajapati <hprajapati@mvista.com>
+Date: Wed, 15 Jun 2022 10:44:50 +0530
+Subject: [PATCH] CVE-2022-24407
+
+Upstream-Status: Backport [https://github.com/cyrusimap/cyrus-sasl/commit/9eff746c9daecbcc0041b09a5a51ba30738cdcbc]
+CVE: CVE-2022-24407
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ plugins/sql.c | 26 +++++++++++++++++++++++---
+ 1 file changed, 23 insertions(+), 3 deletions(-)
+
+diff --git a/plugins/sql.c b/plugins/sql.c
+index 95f5f707..5d20759b 100644
+--- a/plugins/sql.c
++++ b/plugins/sql.c
+@@ -1150,6 +1150,7 @@ static int sql_auxprop_store(void *glob_context,
+     char *statement = NULL;
+     char *escap_userid = NULL;
+     char *escap_realm = NULL;
++    char *escap_passwd = NULL;
+     const char *cmd;
+     
+     sql_settings_t *settings;
+@@ -1221,6 +1222,11 @@ static int sql_auxprop_store(void *glob_context,
+ 			    "Unable to begin transaction\n");
+     }
+     for (cur = to_store; ret == SASL_OK && cur->name; cur++) {
++	/* Free the buffer, current content is from previous loop. */
++	if (escap_passwd) {
++	    sparams->utils->free(escap_passwd);
++	    escap_passwd = NULL;
++	}
+ 
+ 	if (cur->name[0] == '*') {
+ 	    continue;
+@@ -1242,19 +1248,32 @@ static int sql_auxprop_store(void *glob_context,
+ 	}
+ 	sparams->utils->free(statement);
+ 
++	if (cur->values[0]) {
++	    escap_passwd = (char *)sparams->utils->malloc(strlen(cur->values[0])*2+1);
++	    if (!escap_passwd) {
++		ret = SASL_NOMEM;
++		break;
++	    }
++	    settings->sql_engine->sql_escape_str(escap_passwd, cur->values[0]);
++	}
++
+ 	/* create a statement that we will use */
+ 	statement = sql_create_statement(cmd, cur->name, escap_userid,
+ 					 escap_realm,
+-					 cur->values && cur->values[0] ?
+-					 cur->values[0] : SQL_NULL_VALUE,
++					 escap_passwd ?
++					 escap_passwd : SQL_NULL_VALUE,
+ 					 sparams->utils);
++	if (!statement) {
++	    ret = SASL_NOMEM;
++	    break;
++	}
+ 	
+ 	{
+ 	    char *log_statement =
+ 		sql_create_statement(cmd, cur->name,
+ 				     escap_userid,
+ 				     escap_realm,
+-				     cur->values && cur->values[0] ?
++				     escap_passwd ?
+ 				     "<omitted>" : SQL_NULL_VALUE,
+ 				     sparams->utils);
+ 	    sparams->utils->log(sparams->utils->conn, SASL_LOG_DEBUG,
+@@ -1287,6 +1306,7 @@ static int sql_auxprop_store(void *glob_context,
+   done:
+     if (escap_userid) sparams->utils->free(escap_userid);
+     if (escap_realm) sparams->utils->free(escap_realm);
++    if (escap_passwd) sparams->utils->free(escap_passwd);
+     if (conn) settings->sql_engine->sql_close(conn);
+     if (userid) sparams->utils->free(userid);
+     if (realm) sparams->utils->free(realm);
+-- 
+2.25.1
+

meta-networking/recipes-daemons/cyrus-sasl/cyrus-sasl_2.1.27.bb

@@ -17,6 +17,7 @@ SRC_URI = "git://github.com/cyrusimap/cyrus-sasl;protocol=https;branch=master \
            file://0001-Allow-saslauthd-to-be-built-outside-of-source-tree-w.patch \
            file://0001-makeinit.sh-fix-parallel-build-issue.patch \
            file://CVE-2019-19906.patch \
+           file://CVE-2022-24407.patch \
            "
 
 UPSTREAM_CHECK_URI = "https://github.com/cyrusimap/cyrus-sasl/archives"