Spring Security Advisories

CVE-2018-1261: Unsafe Unzip with spring-integration-zip

CRITICAL | MAY 09, 2018 | CVE-2018-1261

Description

spring-integration-zip , versions prior to 1.0.1, exposes an arbitrary file write vulnerability, that can be achieved using a specially crafted zip archive (affects other archives as well, bzip2, tar, xz, war, cpio, 7z), that holds path traversal filenames. So when the filename gets concatenated to the target extraction directory, the final path ends up outside of the target folder.

This specifically applies to the unzip transformer.

This can only happen if an application using this library accepts and unpacks zip files from untrusted sources.

Affected Spring Products and Versions

  • Spring Integration Zip Community Extension Project version 1.0.0.RELEASE

Mitigation

Users of affected versions should apply the following mitigation:

  • Upgrade to the 1.0.1.RELEASE

Or do not unzip untrusted zip files.

Credit

This issue was identified and responsibly reported by the Snyk Security Research Team.

History

  • 2018-05-09: Initial vulnerability report published

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