Description

Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.

Remediation

References

https://breakingthe3ma.app

https://breakingthe3ma.app/files/Threema-PST22.pdf

https://github.com/srikanth-lingala/zip4j/issues/485

https://github.com/srikanth-lingala/zip4j/releases

https://news.ycombinator.com/item?id=34316206

https://threema.ch/en/blog/posts/news-alleged-weaknesses-statement

Related Vulnerabilities

CVE-2017-16114 Vulnerability in maven package org.webjars:marked

CVE-2018-21268 Vulnerability in npm package traceroute

CVE-2017-16201 Vulnerability in npm package zjjserver

CVE-2019-6283 Vulnerability in npm package node-sass

CVE-2017-11342 Vulnerability in npm package node-sass

Severity

Medium

Classification

CWE-346 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Tags

Third Party Advisory Exploit Technical Description Issue Tracking Patch Release Notes Vendor Advisory