full-disclosure - [FD] CVE-2017-11563: Remote Code Execution via stack overflow in D-Link EyeOn Baby Monitor (DCS-825L)

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Message-ID: <654C8FA0-DE39-4DF6-84E4-72DFEE6F7785@trendmicro.com>
Date: Tue, 21 Aug 2018 06:16:46 +0000
From: "kenney_lu@...ndmicro.com" <kenney_lu@...ndmicro.com>
To: "fulldisclosure@...lists.org" <fulldisclosure@...lists.org>
Subject: [FD] CVE-2017-11563: Remote Code Execution via stack overflow in
 D-Link EyeOn Baby Monitor (DCS-825L)

Reserved CVE: CVE-2017-11563

# Description
D-Link EyeOn Baby Monitor (DCS-825L) has a remote code execution vulnerability; a remote attacker can send a crafted request to finder and execute arbitrary code without authentication.

# Vulnerability Type
Buffer Overflow

# Affected Product Code Base
DCS-825L EyeOn Baby Monitor - 1.08.1

# Affected Component
finderd daemon (Device Discovery)

# Attack Type
Remote

# Attack Vectors
Send crafted UDP packets to overflow buffer and lead to remote code execution

# Discoverer
Dove Chiu (Trend Micro) and Kenney Lu (Trend Micro)

# Vulnerability Details
A UDP “Discover” service, which provides multiple functions such as changing the passwords and getting basic information, was installed on the device.  An attacker can craft a malicious UDP request to perform stack overflow on the data by using proper ROP (return oriented programming) gadgets to execute an arbitrary code with root privilege on the device. 

Reference: https://documents.trendmicro.com/assets/tech_brief_Device_Vulnerabilities_in_the_Connected_Home2.pdf

# Status
Fixed in the latest beta firmware

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