Arbitrary File Write via Archive Extraction (Zip Slip) Affecting com.github.dgarijo:widoco package, versions [0,]
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Test your applications- Snyk ID SNYK-JAVA-COMGITHUBDGARIJO-3227637
- published 10 Jan 2023
- disclosed 28 Dec 2022
- credit Jonathan Leitschuh
Introduced: 28 Dec 2022
CVE-2022-4772 Open this link in a new tabHow to fix?
A fix was pushed into the master branch but not yet published.
Overview
com.github.dgarijo:widoco is a Wizard for documenting ontologies. WIDOCO is a step by step generator of HTML templates with the documentation of your ontology. It uses the LODE environment to create part of the template.
Affected versions of this package are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) via the function unZipIt of the file src/main/java/widoco/WidocoUtils.java.
Details
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 authorized_keys file:
+2018-04-15 22:04:29 ..... 19 19 good.txt
+2018-04-15 22:04:42 ..... 20 20 ../../../../../../root/.ssh/authorized_keys