search menu icon-carat-right cmu-wordmark

CERT Coordination Center


Dahua IP cameras Sonia web interface is vulnerable to stack buffer overflow

Vulnerability Note VU#547255

Original Release Date: 2017-07-18 | Last Revised: 2017-07-26

Overview

Dahua IP camera products using firmware versions prior to V2.400.0000.14.R.20170713 include a version of the Sonia web interface that may be vulnerable to a stack buffer overflow.

Description

CWE-121: Stack-based Buffer Overflow - CVE-2017-3223

Dahua IP camera products include an application known as Sonia (/usr/bin/sonia) that provides the web interface and other services for controlling the IP camera remotely.

Versions of Sonia included in firmware versions prior to DH_IPC-Consumer-Zi-Themis_Eng_P_V2.408.0000.11.R.20170621 do not validate input data length for the 'password' field of the web interface. A remote, unauthenticated attacker may submit a crafted POST request to the IP camera's Sonia web interface that may lead to out-of-bounds memory operations and loss of availability or remote code execution.

The issue was originally identified by the researcher in firmware version DH_IPC-HX1X2X-Themis_EngSpnFrn_N_V2.400.0000.30.R.20160803.

Impact

A remote, unauthenticated attacker may submit a crafted POST request to the IP camera's Sonia web interface that may lead to out-of-bounds memory operations and loss of availability or remote code execution.

Solution

Apply update

Dahua has released firmware version DH_IPC-ACK-Themis_Eng_P_V2.400.0000.14.R.20170713.bin to address this issue. All affected users should update their firmware as soon as possible. If you have any questions, you may contact cybersecurity@dahuatech.com.

Vendor Information

547255
Expand all

Dahua Security

Notified:  May 31, 2017 Updated:  July 17, 2017

Statement Date:   July 17, 2017

Status

  Affected

Vendor Statement

Dahua recommends all affected users to update the firmware of their device to new version.
You can download version from http://www.dahuasecurity.com/
If you have any questions, you can contact cybersecurity@dahuatech.com

Vendor Information

Dahua has provided an updated firmware version DH_IPC-ACK-Themis_Eng_P_V2.400.0000.14.R.20170713.bin to address this issue.

Vendor References

http://www.dahuasecurity.com/firmware_161.html

Addendum

There are no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal 7.8 E:POC/RL:OF/RC:C
Environmental 5.9 CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

Credit

Thanks to Ilya Smith of Positive Technologies for reporting this vulnerability.

This document was written by Garret Wassermann.

Other Information

CVE IDs: CVE-2017-3223
Date Public: 2017-07-18
Date First Published: 2017-07-18
Date Last Updated: 2017-07-26 16:18 UTC
Document Revision: 42

Sponsored by the Department of Homeland Security Office of Cybersecurity and Communications.