CVE-2020-27539 - CVE House
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Status published Critical CVE-2020-27539

Heap overflow with full parsing of HTTP respose in Rostelecom...

Vulnerability Description

Heap overflow with full parsing of HTTP respose in Rostelecom CS-C2SHW 5.0.082.1. AgentUpdater service has a self-written HTTP parser and builder. HTTP parser has a heap buffer overflow (OOB write). In default configuration camera parses responses only from HTTPS URLs from config file, so vulnerable code is unreachable and one more bug required to reach it.

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...
Medium 6.8
CVE-2020-27541
Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service...
High 7.5
CVE-2020-27540
Bash injection vulnerability and bypass of signature verification 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.