OTPulse
FeedAboutContact

Hanwha Techwin SRN-4000

Act Now9.8ICS-CERT ICSA-17-136-03May 16, 2017
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

The Hanwha Techwin SRN-4000 network video recorder/surveillance device contains a critical vulnerability (CWE-284 - improper access control) that allows unauthenticated remote code execution. The vulnerability affects firmware versions prior to SRN4000_v2.16_170401. An attacker can exploit this over the network without authentication to execute arbitrary commands on the device. This affects surveillance and security monitoring functions in critical infrastructure environments.

What this means
What could happen
An attacker with network access to the SRN-4000 could execute arbitrary code with no authentication required, potentially disrupting surveillance operations or gaining persistent access to the device to monitor network activity. This could impact security monitoring capabilities at critical infrastructure sites.
Who's at risk
Organizations operating Hanwha Techwin SRN-4000 network cameras or video surveillance systems at critical infrastructure sites (water utilities, power plants, transportation facilities) should prioritize this vulnerability. The device provides security monitoring for physical access control; compromise could allow an attacker to disable or manipulate surveillance feeds.
How it could be exploited
An attacker sends a specially crafted network request to the SRN-4000 device on its management port. Since no authentication is required and the vulnerability has low exploitation complexity, the attacker can trigger remote code execution directly without credentials or prior system knowledge.
Prerequisites
  • Network access to the SRN-4000 device management interface
  • No authentication required
Remotely exploitableNo authentication requiredLow complexityHigh CVSS score (9.8)No patch available
Exploitability
Low exploit probability (EPSS 0.7%)
Affected products (1)
ProductAffected VersionsFix Status
SRN-4000 firmware:< SRN4000 v2.16 170401SRN4000_v2.16_170401
Remediation & Mitigation
0/4
Do now
0/2
HARDENINGIsolate the SRN-4000 from direct internet access using a firewall or network segmentation
WORKAROUNDRestrict network access to the SRN-4000 to only authorized management workstations
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpgrade to firmware SRN4000_v2.16_170401 or later when available from Hanwha Techwin
Long-term hardening
0/1
HARDENINGMonitor network traffic to/from the SRN-4000 for suspicious activity
View full CISA ICS-CERT advisory
↑↓ Navigate · Esc Close
API: /api/v1/advisories/105f3fc4-fce6-4683-9a46-ca02ab6735ea