CVE-2015-2909

Q: What is the severity of CVE-2015-2909?

CVE-2015-2909 has a CVSS score of 9.8 (CRITICAL). This vulnerability affects Dedicated Micros security devices that rely on GUI warnings instead of enforcing credential configuration. Remote attackers can gain unauthorized access to these devices when administrators ignore the warnings and leave default or no credentials. This affects DV-IP Express, SD Advanced, SD, EcoSense, and DS2 devices.

9.8 CRITICAL

Authentication Bypass

📋 TL;DR

This vulnerability affects Dedicated Micros security devices that rely on GUI warnings instead of enforcing credential configuration. Remote attackers can gain unauthorized access to these devices when administrators ignore the warnings and leave default or no credentials. This affects DV-IP Express, SD Advanced, SD, EcoSense, and DS2 devices.

💻 Affected Systems

Products:

Dedicated Micros DV-IP Express
Dedicated Micros SD Advanced
Dedicated Micros SD
Dedicated Micros EcoSense
Dedicated Micros DS2

Versions: All versions relying on GUI warnings for credential enforcement

Operating Systems: Embedded/Proprietary

Default Config Vulnerable: ⚠️ Yes

Notes: Devices are vulnerable when administrators ignore GUI warnings and fail to set usernames/passwords. The vulnerability exists in the design approach rather than specific software versions.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of security devices allowing attackers to view/disable surveillance feeds, reconfigure systems, or use devices as footholds into networks.

🟠

Likely Case

Unauthorized access to surveillance systems and device configuration by attackers scanning for vulnerable devices.

🟢

If Mitigated

No impact if proper credentials are configured and devices are not exposed to untrusted networks.

🌐 Internet-Facing: HIGH - Devices exposed to internet are easily discoverable and exploitable without authentication.

🏢 Internal Only: MEDIUM - Internal attackers or compromised systems could exploit this if devices lack credentials.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires no authentication and can be performed via standard web interfaces. Attackers can scan for devices using Shodan or similar tools.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: N/A

Vendor Advisory: N/A

Restart Required: No

Instructions:

No official patch exists. The vendor states this is expected behavior with GUI warnings. Administrators must manually configure credentials.

🔧 Temporary Workarounds

Configure Strong Credentials

all

Set unique, strong usernames and passwords on all affected devices through the web interface.

Network Segmentation

all

Place devices on isolated VLANs or networks with strict firewall rules limiting access.

🧯 If You Can't Patch

Immediately configure strong administrative credentials on all devices
Remove devices from internet-facing networks and implement strict network access controls

🔍 How to Verify

Check if Vulnerable:

Attempt to access device web interface without authentication. If access is granted without credentials, device is vulnerable.

Check Version:

Check device web interface for firmware version information (varies by model)

Verify Fix Applied:

Verify that authentication is required to access device web interface and that strong credentials are configured.

📡 Detection & Monitoring

Log Indicators:

Failed authentication attempts from unexpected sources
Successful logins from unknown IP addresses
Configuration changes without authorized user activity

Network Indicators:

Unusual outbound connections from devices
Scanning traffic targeting device ports (typically 80, 443, 8080)
HTTP requests to device interfaces without authentication headers

SIEM Query:

source_ip IN (device_ips) AND (event_type="authentication_failure" OR event_type="configuration_change")

📊 Metadata

CVE ID: CVE-2015-2909

CVSS v3 Score: 9.8 (CRITICAL)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-269

Published: February 6, 2020

Last Updated: November 21, 2024

🔗 References

http://cybergibbons.com/security-2/shodan-searches/interesting-shodan-searches-sd-advanced-dvrs/ Exploit,Third Party Advisory
http://www.kb.cert.org/vuls/id/276148 Third Party Advisory,US Government Resource
http://cybergibbons.com/security-2/shodan-searches/interesting-shodan-searches-sd-advanced-dvrs/ Exploit,Third Party Advisory
http://www.kb.cert.org/vuls/id/276148 Third Party Advisory,US Government Resource

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Ds2 \(dvtr\) Firmware by Netvu

Ds2 \(dvtu\) Firmware by Netvu

Ds2 \(dvtx\) Firmware by Netvu

Ds2 \(dvtx\) Netvu Connected Firmware by Netvu

Ds2 \(m2ip\) Firmware by Netvu

Dv Ip Express Firmware by Netvu

Ecosense 4\/8\/16 \(m4t\) Firmware by Netvu

Sd 32 \(m3g\) Firmware by Netvu

Sd 32 \(m3h\) Firmware by Netvu

Sd 4 \(m3s\) Firmware by Netvu

Sd 4 \(m3t\) Firmware by Netvu

Sd 8\/12\/16 No Kbd \(m3r\) Firmware by Netvu

Sd 8\/12\/16 No Kbd \(m3s\) Firmware by Netvu

Sd 8\/16 Front Panel Kbd \(m3r\) Firmware by Netvu

Sd 8\/16 Front Panel Kbd \(m3u\) Firmware by Netvu

Sd Advanced Sdhd Firmware by Netvu

Sd Advanced 8\/12\/16 Vga Firmware by Netvu

Sd Advanced Closed Iptv \(m3u\) Firmware by Netvu

Sd Advanced Non Closed Iptv \(m3u\) Firmware by Netvu

Sd Advanced Nvr Firmware by Netvu