An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders. Attackers can send a crafted unauthenticated RTSP request to cause a buffer overflow and application crash. The device will not be able to perform its main purpose of video encoding and streaming for up to a minute, until it automatically reboots. Attackers can send malicious requests once a minute, effectively disabling the device.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24214
Reference (s):
- http://packetstormsecurity.com/files/159605/HiSilicon-Video-Encoder-Buffer-Overflow-Denial-Of-Service.html
- https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/
- https://www.kb.cert.org/vuls/id/896979