Western Digital My Cloud Cloud, Mirror Gen2, EX2 Ultra, EX2100, EX4100, DL2100, DL4100, PR2100 and PR4100 before firmware 2.31.183 are affected by a code execution (as root, starting from a low-privilege user session) vulnerability. The cgi-bin/webfile_mgr.cgi file allows arbitrary file write by abusing symlinks. Specifically, this occurs by uploading a tar archive that contains a symbolic link, then uploading another archive that writes a file to the link using the "cgi_untar" command. Other commands might also be susceptible. Code can be executed because the "name" parameter passed to the cgi_unzip command is not sanitized.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| westerndigital | my_cloud_firmware | 2.31.183 | - |
| westerndigital | my_cloud_mirror_gen2_firmware | 2.31.183 |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9
Affected Products
6
References
westerndigital / my_cloud_firmware
| - |
| westerndigital | my_cloud_ex2_ultra_firmware | 2.31.183 | - |
| westerndigital | my_cloud_ex2100_firmware | 2.31.183 | - |
| westerndigital | my_cloud_ex4100_firmware | 2.31.183 | - |
| westerndigital | my_cloud_dl2100_firmware | 2.31.183 | - |
| westerndigital | my_cloud_dl4100_firmware | 2.31.183 | - |
| westerndigital | my_cloud_pr2100_firmware | 2.31.183 | - |
| westerndigital | my_cloud_pr4100_firmware | 2.31.183 | - |
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact