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PLANEX CS-W50HD Command Injection

PLANEX CS-W50HD Command Injection
Posted Aug 23, 2018
Authored by Kenney Lu

PLANEX CS-W50HD suffers from a command injection vulnerability.

tags | advisory
advisories | CVE-2017-12573
MD5 | 6a8c863b9907ed0302c462e6c88bae30

PLANEX CS-W50HD Command Injection

Change Mirror Download
Reserved CVE: CVE-2017-12573

# Description
The device has a command-injection vulnerability in the web management UI. An attacker can send a crafted HTTP POST request to execute arbitrary code. Authentication is required before executing the attack.

# Vulnerability Type
Command Injection

# Affected Product Code Base
firmware ver 030608

# Affected Component
Web management UI

# Attack Type
Remote

# Attack Vectors
Send a crafted HTTP POST request to execute arbitrary code

# Discoverer
Kenney Lu (Trend Micro)

# Vulnerability Detail

The command inject occurs on NAS settings page a/cgi-bin/nasset.cgia, the input parameters is not filtered properly, an attacker can insert command with escaped characters or eval function to execute arbitrary code with root privilege.

# Status
Fixed in firmware ver 030720


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