An issue was discovered in NVR WebViewer on Hanwah Techwin SRN-472s 1.07_190502 devices, and other SRN-x devices before 2019-05-03. A system crash and reboot can be achieved by submitting a long username in excess of 117 characters. The username triggers a buffer overflow in the main process controlling operation of the DVR system, rendering services unavailable during the reboot operation. A repeated attack affects availability as long as the attacker has network access to the device.
2019-09-05T15:15:11.783
2024-11-21T04:22:27.613
Modified
CVSSv3.0: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | hanwha-security | srn-472s_firmware | 1.07_190502 | Yes |
| Hardware | hanwha-security | srn-472s | - | No |
| Operating System | hanwha-security | srn-873s_firmware | < 2019-05-03 | Yes |
| Hardware | hanwha-security | srn-873s | - | No |
| Operating System | hanwha-security | srn-1673s_firmware | < 2019-05-03 | Yes |
| Hardware | hanwha-security | srn-1673s | - | No |