PT-2021-11404 · Rostelecom · Rostelecom Cs-C2Shw

Published 2021-01-25 · Updated 2021-07-21 · CVE-2020-27542

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Rostelecom CS-C2SHW version 5.0.082.1

Description: The issue affects the camera's configuration process via QR code, which includes network settings. The static IP configuration from the QR code is copied to the file /config/ip-static, and after a reboot, this data is inserted into a bash command without proper escaping, making bash command injection possible. The camera does not parse QR codes if it has already been successfully configured, and it always reboots after a successful configuration via QR code.

Recommendations: For version 5.0.082.1, as a temporary workaround, consider restricting the use of QR code configuration to minimize the risk of exploitation. Avoid using the QR code configuration feature until a patch is available.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-27542

Affected Products

Rostelecom Cs-C2Shw

References · 4

• 🔥 https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-27542 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27542 · Vendor Advisory
• https://t.me/cibsecurity/22641 · Telegram Post