Merge branch 'release/3.1.39'

CHANGELOG.md

@@ -6,8 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.39] - 2021-02-17
+
 ### Security
-- Prevent access to `$smarty.template_object` in Security mode
+- Prevent access to `$smarty.template_object` in sandbox mode
+- Fixed code injection vulnerability by using illegal function names in `{function name='blah'}{/function}` 
 
 ## [3.1.38] - 2021-01-08
 

libs/Smarty.class.php

@@ -111,7 +111,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.38';
+    const SMARTY_VERSION = '3.1.39';
     /**
      * define variable scopes
      */

libs/sysplugins/smarty_internal_compile_function.php

@@ -58,6 +58,11 @@ class Smarty_Internal_Compile_Function extends Smarty_Internal_CompileBase
         }
         unset($_attr[ 'nocache' ]);
         $_name = trim($_attr[ 'name' ], '\'"');
+
+        if (!preg_match('/^[a-zA-Z0-9_\x80-\xff]+$/', $_name)) {
+	        $compiler->trigger_template_error("Function name contains invalid characters: {$_name}", null, true);
+        }
+
         $compiler->parent_compiler->tpl_function[ $_name ] = array();
         $save = array(
             $_attr, $compiler->parser->current_buffer, $compiler->template->compiled->has_nocache_code,

make-release.sh

@@ -14,6 +14,6 @@ git pull
 git merge --no-ff "release/$1"
 git branch -d "release/$1"
 git tag -a "v$1" -m "Release $1"
-git push --follow-tags
 
 printf 'Done creating release %s\n' "$1"
+printf 'Run `git push --follow-tags origin` to publish it.\n'

tests/UnitTests/TemplateSource/TagTests/TemplateFunction/CompileFunctionTest.php

@@ -431,5 +431,14 @@ class CompileFunctionTest extends PHPUnit_Smarty
                      array("{function name=simple}A{\$foo}\nC{/function}{call name='simple'}", "Abar\nC", 'T14', $i++),
                      array("{function name=simple}A\n{\$foo}\nC{/function}{call name='simple'}", "A\nbar\nC", 'T15', $i++),
         );
-            }
+    }
+
+    /**
+     * Test handling of function names that are a security risk
+     * @expectedException        SmartyCompilerException
+     */
+    public function testIllegalFunctionName() {
+	    $this->smarty->fetch('string:{function name=\'rce(){};echo "hi";function \'}{/function}');
+    }
+
 }