CVE-2020-27540

CRITICAL

9.8

Description

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 vc\version.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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/26/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

company:cs-c2shwcompany:cs-c2shw_firmware

Weaknesses (CWE)

CWE-347

References

https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707(cve@mitre.org)

https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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