一种针对AOSP公开签名漏洞的快速检测方法

A Fast Detection Method for Public AOSP Signature Vulnerability

随着Andorid手机越来越流行,Android系统的安全问题也越来越受到重视。对于Android系统,隐私泄露是一种重要的安全问题。文中发现一种潜在的获取手机中隐私信息的攻击方法。该方法针对Android应用程序自签名的机制,利用AOSP（ Android Open Source Project）公开签名漏洞,获取预装软件权限,窃取手机的隐私信息。针对此漏洞,文中提出了一种快速检测方法,可以同时逆向多个应用程序,并检查签名信息,快速检测漏洞。实验结果表明,在市场上较为流行的Android ROM中,几款重要的系列均存在AOSP漏洞,如CM、MIUI等。文中提出的方法,检测一个ROM仅需9-10分钟,可以快速有效地检测出ROM是否存在漏洞,并且通过有效的方法,证明漏洞可以被直接利用。

With the growing popularity of smartphones in Android,the issues on Android system security attracts more and more atten-tion. For Android system,privacy leakage is an important security problem. In this paper,find a potential attacking method to get privacy information from smartphones. This attack utilizes the self-signed mechanism for Android application,takes advantage of public AOSP （ Android Open Source Project） signature vulnerability,gets permissions of pre-installed software and steals the users’ private informa-tion. Against this vulnerability,propose a fast detection method,which can reverse multiple applications at the same time,and check the signature information. The vulnerability can be detected quickly. The results find that the popular Android ROM in the market,a few im-portant series have AOSP vulnerability,such as CM,MIUI,etc. The method proposed in this paper only needs 9-10 minutes to detect a ROM,which can quickly and efficiently detect the ROM. And the holes can be used directly through the effective method.