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CVE-2019-9949

Published: May 23, 2019Updated: Nov 21, 2024 Sources: CVE List NVDCWE-59
NVD MITRE
8.8CVSSHIGH
EPSS Score
3.1%
Top 14.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-59

Affected Products

n/an/a
my cloud firmwarewesterndigitalHardware Firmware
my cloud mirror gen2 firmwarewesterndigitalHardware Firmware
my cloud ex2 ultra firmwarewesterndigitalHardware Firmware
my cloud ex2100 firmwarewesterndigitalHardware Firmware
westerndigitalcommercialUSHardware Firmwareaka western digital, wd
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-183-05-20-2019/237717
community.wd.com
https://bnbdr.github.io/posts/wd/
bnbdr.github.io
https://github.com/bnbdr/wd-rce/
github.com

Timeline

Published
May 23, 2019
Last Updated
Nov 21, 2024

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