CVE-2019-14657
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductYeahlink Vp59 Firmware
PublishedOct 8, 2019
First seenOct 8, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yeahlink vp59_firmware | v ≤ 2019-08-04 | — |
| yeahlink t49g_firmware | v ≤ 2019-08-04 | — |
| yeahlink t58v_firmware | v ≤ 2019-08-04 | — |
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