> 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/information-disclosure/source-code-disclosure-via-backup-files.md).

# 通过备份文件泄露源代码

### 通过备份文件披露源代码

**实验说明**

本实验通过 **备份文件** 存储在一个隐藏目录中。/ 目标是识别并提交 **数据库密码**，它硬编码在披露的源代码中。

**操作阶段**

**内容发现**/ 使用 **Burp Suite** （函数 Discover Content），我们分析应用程序可访问的路径。

<figure><img src="/files/200780ccb566e66db7ad15baf43fa8f350c8d0ce" alt=""><figcaption></figcaption></figure>

**敏感目录的识别**/ 分析显示存在一个名为 **backup**.

<figure><img src="/files/6f0e18bae44bb99290d3719a0658990ff22e9f28" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/21f2679b2e54eaeb0315a8bf5ec69ded1a7723a6" alt=""><figcaption></figcaption></figure>

**访问备份文件**/ 在这个目录中，一个扩展名为 `.bk` 的备份文件可访问。/ 它包含解释过的 \*\*Java 代码\*\*。

<figure><img src="/files/f0d74adcf782d5f69bf4227a121354599741f2ea" alt=""><figcaption></figcaption></figure>

**披露代码分析**/ 该文件揭示了一个 **PostgreSQL** 数据库的登录信息，凭据已硬编码。

<figure><img src="/files/1e537db2f6724e9c62d22bf70712a1af0eb484a1" alt=""><figcaption></figcaption></figure>

```java
        ConnectionBuilder connectionBuilder = ConnectionBuilder.from(
                "org.postgresql.Driver",
                "postgresql",
                "localhost",
                5432,
                "postgres",
                "postgres",
                "eq77s9j4j4sa5a3m9iymzi9e2m8e68sj"
        ).withAutoCommit();
```


---

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