CVE-2020-27542 — MEDIUM (6.8)

Vulnerability Description

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.

CVSS Score

6.8

MEDIUM

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Company	Cs-C2Shw Firmware	5.0.082.1
Company	Cs-C2Shw	-

Related Weaknesses (CWE)

CWE-78

References

https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1ExploitThird Party Advisory
https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1ExploitThird Party Advisory

FAQ

What is CVE-2020-27542?

CVE-2020-27542 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 th...

How severe is CVE-2020-27542?

CVE-2020-27542 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27542?

Check the references section above for vendor advisories and patch information. Affected products include: Company Cs-C2Shw Firmware, Company Cs-C2Shw.