CVE-2020-27540

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347

Affected software

No affected versions have been published.

Timeline

Published: Jan 26, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-275417.5Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service has a bug in parsing broadcast discovery UDP packet. Se CVE-2020-275426.8Rostelecom CS-C2SHW 5.0.082.1 is affected by: Bash command injection. The camera reads configuration from QR code (including network setting CVE-2020-275437.5The restify-paginate package 0.0.5 for Node.js allows remote attackers to cause a Denial-of-Service by omitting the HTTP Host header. A Rest CVE-2020-275449.8An issue was discovered in FoldingAtHome Client Advanced Control GUI before commit 9b619ae64443997948a36dda01b420578de1af77, allows remote a CVE-2020-275456.5libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted CVE-2020-27553.7Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Scripting). Supported versions that are affected are Ja CVE-2020-275537.5In BASETech GE-131 BT-1837836 firmware 20180921, the web-server on the system is configured with the option “DocumentRoot /etc“. This allows CVE-2020-275547.5Cleartext Transmission of Sensitive Information vulnerability in BASETech GE-131 BT-1837836 firmware 20180921 exists which could leak sensit CVE-2020-275559.8Use of default credentials for the telnet server in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to execute arbitrar CVE-2020-275565.3A predictable device ID in BASETech GE-131 BT-1837836 firmware 20180921 allows unauthenticated remote attackers to connect to the device.CVE-2020-275575.5Unprotected Storage of Credentials vulnerability in BASETech GE-131 BT-1837836 firmware 20180921 allows local users to gain access to the vi CVE-2020-275586.5Use of an undocumented user in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to view the video stream.