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Arbitrary File Write via Archive Extraction (Zip Slip) Affecting org.springframework.integration:spring-integration-zip package, versions [,1.0.2.RELEASE)

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.05% (19th percentile)
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NVD
4.7 medium

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  • Snyk ID SNYK-JAVA-ORGSPRINGFRAMEWORKINTEGRATION-32275
  • published 16 May 2018
  • disclosed 15 May 2018
  • credit Snyk Security Research Team, Abago Forgans
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Introduced: 15 May 2018

CVE-2018-1263 Open this link in a new tab
CWE-22 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade org.springframework.integration:spring-integration-zip to version 1.0.2 or higher.

Overview

org.springframework.integration:spring-integration-zip provides Zip (un-) compression support.

Affected versions of the package are vulnerable to Arbitrary File Write via Archive Extraction (AKA "Zip Slip").

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