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CVE-2021-40724 is a path traversal vulnerability affecting Adobe Acrobat Reader for Android version 21.8.0 and earlier. According to the provided content, a malicious file can trigger improper path handling when opened by the victim, allowing an unauthenticated attacker to exploit the issue in the context of the current user. The supplied description states that successful exploitation could result in arbitrary code execution, while the associated Adobe advisory also characterizes the issue as leading to information disclosure. The vulnerable condition is therefore an improper restriction of file path resolution during processing of attacker-controlled file content.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains an Android application ('BadSploit') designed as a proof-of-concept exploit for the LFI (Local File Inclusion) vulnerability emulating CVE-2021-40724 in the MobileHackingLab DocumentViewer app (which mimics a real-world Adobe Acrobat Reader Android vulnerability). The exploit leverages a crafted Android intent with a malicious URI that abuses directory traversal to place a malicious shared library (.so file) into the vulnerable app's native-libraries directory. When the vulnerable app loads this library, arbitrary code execution is achieved. The main exploit logic is implemented in 'app/src/main/java/com/tino/badsploit/MainActivity.java', which constructs and sends the intent. The repository is structured as a standard Android Studio project, with supporting Gradle build files, resources, and test stubs. The exploit requires the attacker to host the malicious library on a web server and to have the vulnerable app installed on the target device. No detection or scanning functionality is present; this is a direct exploitation tool.
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1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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