CVE-2017-7925

Imagine your security camera system has a hidden “master key” stored in a file on the device. This flaw is about that key being exposed inside a configuration file. If an attacker finds it, they can pretend to be a higher-privileged user and then view sensitive information and potentially disrupt the system.

This matters if you run Dahua Technology Co., Ltd Digital Video Recorders and IP Cameras—such as the listed Dahua DH-IPC-series cameras and related DH-SD6CXX / DHI-HCVR* DVR/CVR/NVR-style devices. It’s most relevant when attackers can reach your devices over the network and gain a position from which they can access or extract the exposed configuration password.

This is RED because the weakness involves a privileged password in a configuration file, which is the kind of bug attackers actively look for to escalate access. Public attention around this issue is rising, and you should treat it as an urgent patching priority for any exposed Dahua device fleet.

1. Confirm exposure (model + firmware):

   • On each Dahua device, identify the exact model and current firmware version.
   • Match them to the affected Dahua families in the CVE description (DH-IPC-HDBW23A0RN-ZS, DH-IPC-HDBW13A0SN, DH-IPC-HDW1XXX/HDW2XXX/HDW4XXX, DH-IPC-HFW1XXX/HFW2XXX/HFW4XXX, DH-SD6CXX, and relevant DHI-HCVR/DH-NVR families named in the listing).

2. Determine whether you need patching:

   • Follow Dahua’s remediation instructions in http://us.dahuasecurity.com/en/us/Security-Bulletin_030617.php.
   • If your firmware is listed as affected in that bulletin, plan an upgrade.

3. Patch (target fixed firmware):

   • Upgrade each device to the fixed firmware version provided by Dahua for your exact model in Security-Bulletin_030617.php.
   • Reboot the device after upgrade and confirm the firmware version changed to the expected updated release.

4. If patching is delayed (temporary workaround):

   • Remove/avoid any public exposure such as port forwarding.
   • Restrict access so only trusted networks/users can reach the devices (for example, via a VPN or a tightly controlled internal network).

5. What to monitor after changes:

   • Check for any unusual access attempts in device logs or your network firewall logs around the time of patching.
   • Watch for repeated login/connection failures from unexpected IPs (a sign of probing).

6. Timeline note:

   • KEV is not listed in CISA KEV (so there isn’t an official KEV trigger from CISA for this CVE in the provided findings), but the issue still warrants immediate remediation due to the nature of credential exposure.

CVE-2017-7925 is rated critical (CVSS 9.8) and is associated with CWE-260 and CWE-522 (password exposure / insecure handling of sensitive credentials). The core problem is a password stored in a configuration file on affected Dahua IP camera / DVR/NVR/CVR devices, which can allow a malicious actor to impersonate a privileged user and gain access to sensitive information. The provided findings do not indicate KEV listing, and they do not confirm exploitation in the wild. However, the findings include rising press attention and an EPSS prediction (51.4% with a falling trend), suggesting meaningful likelihood of real-world targeting; the verdict for this CVE is RED, so treat it as actively relevant for exposed deployments. A patch is available via Dahua’s Security Bulletin_030617.php and an additional advisory/workaround is referenced by ICSA-17-124-02.