Arbitrary File Write via Archive Extraction (Zip Slip) Affecting juce-framework/JUCE package, versions [,6.1.5)
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- Snyk ID SNYK-UNMANAGED-JUCEFRAMEWORKJUCE-2388607
- published 30 Jan 2022
- disclosed 26 Jan 2022
- credit Snyk Security Research Team
How to fix?
juce-framework/JUCE to version 6.1.5 or higher.
juce-framework/JUCE is an open-source cross-platform C++ application framework for creating high quality desktop and mobile applications, including VST, VST3, AU, AUv3, RTAS and AAX audio plug-ins.
Affected versions of this package are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) via the
ZipFile::uncompressEntry function in
juce_ZipFile.cpp. This vulnerability is triggered when the archive is extracted upon calling
uncompressTo() on a ZipFile object.
It is exploited using a specially crafted zip archive, that holds path traversal filenames. When exploited, a filename in a malicious archive is concatenated to the target extraction directory, which results in the final path ending up outside of the target folder. For instance, a zip may hold a file with a "../../file.exe" location and thus break out of the target folder. If an executable or a configuration file is overwritten with a file containing malicious code, the problem can turn into an arbitrary code execution issue quite easily.
The following is an example of a zip archive with one benign file and one malicious file. Extracting the malicous file will result in traversing out of the target folder, ending up in
/root/.ssh/ overwriting the
+2018-04-15 22:04:29 ..... 19 19 good.txt
+2018-04-15 22:04:42 ..... 20 20 ../../../../../../root/.ssh/authorized_keys