ovaa - Oversecured Vulnerable Android App

项目说明

Description

OVAA (O Android App) is an Android app that aggregates all the platform's known and popular security .

List of

This section only includes the list of , without a detailed description or proof of concept. Examples from OVAA will recei examination and analysis on our blog.

1. Installation of an arbitrary login_url o://o?url=. Leads to the user's user name and password being leaked when they log in.
2. Obtaining access to arbitrary content pro (not exported, but with the attribute android:grantUriPermissions="true") o://os. The attacker's app needs to process o.o.GRANT_PERMISSIONS and pass intent to setResult(code, intent) with flags such as Intent.FLAG_GRANT_READ_URI_PERMISSION and the URI of the content provider.
3. host when processing deeplink o://o?url=....
4. Opening arbitrary URLs o://o?url=. An attacker can use the WebView setting WebSettings.setAllowFileAccessFromFileURLs(true) in the Web.java file to steal arbitrary files by sending them XHR requests and obtaining their content.
5. Access to arbitrary acti and acquiring access to arbitrary content pro in LoginActivity by supplying an arbitrary Intent object to redirect_intent.
6. Theft of arbitrary files in MainActivity by intercepting an activity launch from Intent.ACTION_PICK and passing the URI to any file as data.
7. Insecure broadcast to MainActivity containing credentials. The attacker can register a broadcast receiver with action o.o.UNPROTECTED_CREDENTIALS_DATA and obtain the user's data.
8. Insecure activity launch in MainActivity with action o.o.WEBVIEW, containing the user's encrypted data in the query parameter token.
9. Deletion of arbitrary files via the insecure DeleteFilesSerializable deserialization object.
10. Memory corruption via the MemoryCorruptionParcelable object.
11. Memory corruption via the MemoryCorruptionSerializable object.
12. Obtaining read/write access to arbitrary files in TheftO in the value uri.getLastPathSegment().
13. Obtaining access to app logs via InsecureLoggerService. Leak of credentials in LoginActivity Log.d("ovaa", "Processing " + loginData).
14. Use of the hardcoded AES key in WeakCrypto.
15. Arbitrary Code Execution in O by launching code from third-party apps with no security checks.
16. Use of very wide file sharing declaration for o.o content provider in root entry.
17. Hardcoded credentials to a de endpoint in strings.xml in test_url entry.
18. Arbitrary code execution via a DEX library located in a world-readable/writable directory.

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*Licensed under the Simplified BSD License*

*Copyright (c) 2020, O Inc*

项目信息

开发语言：Java

Star 数：761

技术要点

该项目属于漏洞知识库方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕Oversecured Vulnerable Android App展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。