RCE in Company Cs-C2shw
CVE-2020-27542
Rostelecom CS-C2SHW 5.0.082.1 is affected by: Bash command injection. The camera reads configuration from QR code (including network settings). The static IP configuration from QR code is copied to the file /config/ip-static and after reboot data from this file is inserted into bash command (without any escaping). So bash injection is possible. Camera doesn't parse QR codes if it's already successfully configured. Camera is always rebooted after successful configuration via QR code.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Company Cs-C2shw
- Company Cs-C2shw Firmware — versions 5.0.082.1
Weakness classification (CWE)
References
- dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27542?
- CVE-2020-27542 is a medium-severity vulnerability in Company Cs-C2shw, classified under OS Command Injection. CVSS score: 6.8/10. Published 2021-01-26.
- How severe is CVE-2020-27542?
- Medium severity. CVSS v3 base score is 6.8 out of 10.