CVE-2020-1362 是 WalletService 在处理 CustomProperty 对象的过程中出现了越界读写,此漏洞可以导致攻击者获得管理员权限,漏洞评级为高危。 漏洞原理与分析 漏洞点是设置 CustomProperty 对象的 Group 的 get 方法和 set 方法没有检查边界。 所以我们创建一个 CustomProperty 需要一个 WalletXItem 对象或者 WalletItem 对象,那么使用哪个呢? 但如果我们继续分析,会发现,CustomProperty 类里面有一个 string 对象,并且可以使用 CustomProperty::SetLabel() 对 string 类进行修改,所以,我们可以通过修改 string 类里面的 beg 指针 和 end 指针,然后调用 CustomProperty::SetLabel() 做到任意地址写。
this.FindControl<TextBox>("myTextBox"); } // 自定义属性 public static readonly StyledProperty<string> CustomProperty = AvaloniaProperty.Register<MyUserControl, string>("CustomProperty"); public string CustomValue { get => GetValue(CustomProperty); set => SetValue(CustomProperty, value); } 接下来,我们定义了一个自定义属性CustomProperty和一个自定义事件CustomEvent。 最后,我们实现了OnButtonClick方法,用于处理按钮的点击事件。 CustomValue="test test"></local:MyUserControl> </Window> 在MainWindow.xaml中,我们直接使用了自定义用户控件MyUserControl,并为其CustomProperty
public class CustomProperty { // Fields private string name; private string type; private object value; // Methods public CustomProperty(string name, bool value); public CustomProperty (string name, DateTime value); public CustomProperty(string name, double value); public CustomProperty (string name, int value); public CustomProperty(string name, string value); private CustomProperty (string name, string type, object value); internal CustomProperty(string name, string type, string
DocX gDocument = DocX.Load(@"C:\Users\Administrator\Desktop\投诉审批表.docx"); 初始化ComplainModel //创建CustomProperty value.Contains(Environment.NewLine)) { CustomProperty customProperty = new CustomProperty(prop.Name, value); docx.AddCustomProperty(customProperty); gDocument = DocX.Load(@"C:\Users\Administrator\Desktop\武林管委会\投诉审批表.docx"); //创建CustomProperty complainModel.ThirdApproveText = txtLevelThreeSuggestion.Text; //给docx文档添加CustomProperty
return result; } } 扩展 XUIFile 模型 public class XUIFile { // 添加新的属性和方法 private String customProperty ; public String getCustomProperty() { return customProperty; } public void setCustomProperty(String customProperty) { this.customProperty = customProperty; } } 4.
println("Setting value: $newValue") value = newValue } } class Example { var customProperty : String by CustomDelegate() } fun main() { val example = Example() example.customProperty = println(example.customProperty) } 在上面的例子中,CustomDelegate 类实现了属性委托的接口,通过重写 getValue 和 setValue 方法实现了属性的读取和设置 Example 类中的 customProperty 属性通过 by 关键字委托给了 CustomDelegate 类。 lazy原理 有了上面的基础,再来看lazy的实现就非常简单。
()); //设置节点类型 userTask.setCategory(processNode.getCategory().toString()); List<CustomProperty /** * 创建自定义属性. * * @param key 键 * @param value 值 * @return 自定义属性 */private CustomProperty buildCustomProperty (String key, String value) { CustomProperty customProperty = new CustomProperty(); //自定义属性名称 customProperty.setName(key); //自定义属性值 customProperty.setSimpleValue(value); return customProperty
. */) Vue.prototype.customProperty = () => {} new Vue({ render: h => h(App) }). app.mixin(/* ... */) app.component(/* ... */) app.directive(/* ... */) app.config.globalProperties.customProperty Vue.use(/* ... */) Vue.mixin(/* ... */) Vue.component(/* ... */) Vue.directive(/* ... */) Vue.prototype.customProperty
Button\"]"); //选择属性设置 XmlNodeList tmpXPropLst = tmpXNode.SelectNodes("Propertys/Property"); //创建CustomProperty 对象 CustomProperty cp = new CustomProperty(sender, tmpXPropLst); //设置PropertyGrid选择对象 propertyGrid1
public class MyStarterPropertiesTest { @Value("${my.starter.custom-property}") private String customProperty ; @Test public void testPropertyOverride() { assertEquals("customValue", customProperty
class CustomCardConfig : UdlCardConfig { public override string Type => "custom"; public string CustomProperty custom", ["id"] = cardConfig.Id, ["title"] = cardConfig.Title, ["customProperty "] = cardConfig.CustomProperty, ["customData"] = cardConfig.CustomData, ["className string.IsNullOrEmpty(cardConfig.CustomProperty); } // IUdlCardBuilderBase 接口实现 Dictionary
: activity() ->performedOn($anEloquentModel) ->causedBy($user) ->withProperties(['customProperty eloquent model $activity->causer; //returns an instance of your user model $activity->getExtraProperty('customProperty
> locate(Environment environment) { return new MapPropertySource("customProperty", org.springframework.cloud.bootstrap.BootstrapConfiguration=sample.custom.CustomPropertySourceLocator 那么,”customProperty
> locate(Environment environment) { return new MapPropertySource("customProperty", org.springframework.cloud.bootstrap.BootstrapConfiguration=sample.custom.CustomPropertySourceLocator 那么,”customProperty
As String) As Boolean Dim objDSO As DSOFile.OleDocumentProperties Dim objProperty As DSOFile.CustomProperty
Project的属性 ext.age = 18 //通过代码块同时定义多个自定义属性 ext{ phone = 13874768888 address = 'xiang' } task customProperty 'innnnnner' doLast{ println project.hasProperty('customProperty
> locate(Environment environment) { return new MapPropertySource("customProperty", org.springframework.cloud.bootstrap.BootstrapConfiguration=sample.custom.CustomPropertySourceLocator 那么,”customProperty
> locate(Environment environment) { return new MapPropertySource("customProperty", org.springframework.cloud.bootstrap.BootstrapConfiguration=sample.custom.CustomPropertySourceLocator 那么,”customProperty
新增数据类型 • ChartDashType • CustomProperty • ZipWriter 3.
public class CustomModel { [CustomValidation] public string CustomProperty { get; set; } } 处理复杂的验证逻辑