CVE-2020-27540
Bash injection vulnerability and bypass of signature verification in Rostelecom CS-C2SHW 5.0.082.1. The camera reads firmware update configuration from SD card file vcversion.json. fw-sign parameter and from this configuration is directly inserted into a bash command. Firmware update is run automatically if there is special file on the inserted SD card.
MISC: https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27540
published: 25. 1. 2021
