Description
A command injection vulnerability exists in LILIN Digital Video Recorder (DVR) devices prior to firmware version 2.0b60_20200207 via the Server field in the NTPUpdate configuration. The web service at /z/zbin/dvr_box fails to properly sanitize input, allowing remote attackers to inject and execute arbitrary commands as root by supplying specially crafted XML data to the DVRPOST interface.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Merit LILIN | DVR Firmware | < 2.0b60_20200207 | 2.0b60_20200207 |
References
- https://blog.netlab.360.com/multiple-botnets-are-spreading-using-lilin-dvr-0-day/ third-party-advisory technical-description
- https://www.meritlilin.com/assets/uploads/support/file/M00158-TW.pdf vendor-advisory patch
- https://www.vulncheck.com/advisories/lilin-dvr-multiple-vulnerabilities third-party-advisory
- https://ducklingstudio.blog.fc2.com/blog-entry-400.html