CVE-2019-9949
Description
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.
Related CPE's
References
CvssV3 impact
BaseSeverity | HIGH |
ConfidentialityImpact | HIGH |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | NETWORK |
AvailabilityImpact | HIGH |
IntegrityImpact | HIGH |
PrivilegesRequired | LOW |
BaseScore | 8.8 |
VectorString | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Version | 3.0 |
UserInteraction | NONE |
CvssV2 impact
Version | 2.0 |
VectorString | AV:N/AC:L/Au:S/C:C/I:C/A:C |
AccessVector | NETWORK |
AccessComplexity | LOW |
Authentication | SINGLE |
ConfidentialityImpact | COMPLETE |
IntegrityImpact | COMPLETE |
AvailabilityImpact | COMPLETE |
BaseScore | 9 |