An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders. The file-upload endpoint does not enforce authentication. Attackers can send an unauthenticated HTTP request to upload a custom firmware component, possibly in conjunction with command injection, to achieve arbitrary code execution.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-24217
• https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/
• https://www.kb.cert.org/vuls/id/896979
• http://packetstormsecurity.com/files/159597/HiSilicon-Video-Encoder-Command-Injection.html
• http://packetstormsecurity.com/files/159599/HiSilicon-Video-Encoder-Malicious-Firmware-Code-Execution.html