CVE-2020-27540 - CVE House
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Status published Critical CVE-2020-27540

Bash injection vulnerability and bypass of signature verification in Rostelecom...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2020-27542
Rostelecom CS-C2SHW 5.0.082.1 is affected by: Bash command injection. The...
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CVE-2020-27541
Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service...
High 7.5
CVE-2020-27539
Heap overflow with full parsing of HTTP respose in Rostelecom...
Critical 9.8

Affected Vendor

Affected Software

cs-c2shw firmware
Vulnerable Versions:
5.0.082.1

Timeline

Official Publish: January 25th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.