All Vulnerability Reports

CVE-2021-22114: Zip-slip mitigation bypass in Spring Integration Zip extension


Severity

Low

Vendor

Spring by VMware

Description

spring-integration-zip , versions prior to 1.0.4, 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. The previous cve-2018-1263 prevented the framework from unzipping general traversal file names. The special file names, containing a working directory for unzipping, still can slip out of that working directory. 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 VMware Products and Versions

Severity is low unless otherwise noted.

  • Spring Integration Zip Community Extension Project
    • 1.0.3.RELEASE and earlier
Mitigation

Users of affected versions should apply the following mitigation or do not unzip untrusted zip files:

  • Spring Integration Zip Community Extension Project
    • 1.0.4.RELEASE
Credit

This issue was discovered and responsibly reported by Trung Pham, Viettel Cyber Security.

References
History

2021-01-28: Fix updated
2018-05-09: Original mitigation fix published