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cve/2019/CVE-2019-14657.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2019-14657

Description

Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with ../../../../ allows replacement of almost any file on a phone. This leads to password replacement and arbitrary code execution as root.

POC

Reference

Github

No PoCs found on GitHub currently.